The following which would not be an application of Stuart Wilkinson's theory as regards marrying the idea of useful robotic capabilities in terms of eating food is a recycling truck that feeds on petroleum and is denoted as option D.
What is a Robot?This is referred to as a machine which is able to replicate certain human movements and functions automatically through the use of an external control device.
Since Stuart Wilkinson's theory intends to marry the idea of useful robotic capabilities in terms of eating food then a recycling truck that feeds on petroleum isn't accurate because petroleum isn't a source of food.
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in principle all chemical reactions are reversible and can reach dynamic if all the reactants and products are present. this state occurs when the of the forward and reverse reactions are equal. true or false
Theoretically, every chemical reaction can be stopped and enter a dynamic state if all the reactants and products are present. The forward and reverse reactions are equivalent in this circumstance.
From the food our bodies digest to the way the sunlight we receive is created, chemical reaction occur all around us. Understanding physical and chemical changes is essential before beginning chemical processes. reversed reaction Reversible reactions occur when the reactants produce products, which then combine to produce the reactants once more. In a reaction where A and B combine to form C and D, or vice versa, C and D combine to form A and B.
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How many electronically non-equivalent kinds of protons, and how many kinds of carbons are present in the following compound?
(Don't forget that cyclohexane rings can undergo ring flips).
a. Kinds of protons : ______
b. Kinds of carbons : ______
The following compound contains protons and carbons that are not electronically equivalent. Proton types 6 and carbon types 6.
A proton is a stable subatomic particle with a positive charge equal to one electron charge and a rest mass of 1.67262 1027 kg, or 1,836 times the mass of an electron.
Except for the hydrogen nucleus, all atomic nuclei are composed of protons and neutrons, which are electrically neutral particles. Every chemical element's nucleus contains the same number of protons. This number specifies an element's atomic number and determines its position in the periodic table. An atom is electrically neutral when the number of protons in its nucleus equals the number of electrons orbiting it.
The proton was discovered during the early stages of atomic structure research.
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A student removes a chemical sample from a reagent bottle to be used in an experiment. What should he do with any excess chemical remaining from this sample after the experiment is complete?
Select one:
Check and see if anyone else can use the chemical. If not, discard in the proper waste container.
Conduct a second trial of the experiment with the excess chemical.
Discard the chemical down the sink under running water.
Clean a spatula thoroughly, then use it to add the chemical back into the reagent bottle.
The correct statement from the given option is as follows : Check and see if anyone else can use the chemical. If not, discard in the proper waste container.
A student removes the chemical sample from the reagent bottle to used in an experiment. He should do with any excess chemical that is remaining from that sample after the experiment is complete is he should Check and see if anyone else can use the chemical. If not, discard in the proper waste container.
The remaining chemical can not return to the bottle because , if the student return the this leftover sample, than it can contaminate the entire sample store in the container.
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Ionic bonds
Need help on 9-11
BaSO4 is an ionic compound as it contains SO4 polyatomic ions in it.
Basically BaSO4 molecule does not have its own original shape as it is only an ionic compound and there is no bonding between Ba and SO4 ions, there is just sharing of electrons within the molecule.
Thus BaSO4 lewis structure does not have any shape.
What is the Lewis structure?
Lewis structure is a very simplified representation of the valence electrons in a molecule. It is used to show how electrons are arranged around individual atoms in a molecule. Electrons are shown as "dots" or for connecting electrons as a line between two atoms.To know more about lewis structures, click the link given below:
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when disposable gloves provide limited chemical protection, which of the fololowing are additional best practices
Disposable gloves are ones that you use only once and then discard. They can safeguard both the individual you're caring for and your health.
They aid in preventing the transfer of disease and germs to both you and the other person.
When handling bodily fluids such as saliva, blood, urine, or stool from a loved one, use gloves. And when washing a loved one, some individuals wear gloves. Additionally, gloves can be worn when administering immunizations and applying medications to the skin.
Gloves won't stop you from sticking something sharp into your flesh. Body fluids can spread illness, therefore gloves can assist. However, if there are instances when you decide against using gloves or don't have any, keep your hands as sanitized as you can.
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Answer:
- Changing frequently, especially between tasks
- Hand washing each time you remove your gloves
- Using each pair just once
Consider the reaction below, in which 6 atm of ammonium nitrite is added to an evacuated flask with a catalyst and then heated.
NH4NO2 (g) N2 (g) + 2 H2O)
At equilibrium the total pressure is 14 atm. Calculate the partial pressure of the water vapor at equilibrium
a. 2.0 ATM
b. 4.0 ATM
c. 6.0 ATM
d. 8.0 ATM
e. 10.0 ATM
Option d, The partial pressure of the water vapor at equilibrium is 8 atm.
Ammonium nitrate (NH4NO2) is placed in a 6 atm vacuum flask and heated in this reaction. The total pressure when everything is in equilibrium is 14 atmospheres. Using the information in the problem statement and the ideal gas law, we can determine the partial pressure of water vapor at equilibrium.
We know the reactants (NH4NO2), the products (N2 and H2O), and the total equilibrium pressure, which is 14 atm. Therefore, using the mole fractions of each gas, we can calculate the partial pressure of each gas at equilibrium.
From the balanced chemical equation:
NH4NO2 (g) -> N2 (g) + 2 H2O(g)
The mole ratio of NH4NO2:N2:H2O = 1:1:2
So the mole fraction of N2 = 1/4 and the mole fraction of H2O = 2/4 = 0.5
From the ideal gas law PV = nRT, and knowing the total pressure, we can find the partial pressure of each gas:
Partial pressure of N2 = (mole fraction of N2)(total pressure) = (1/4)(14 atm) = 3.5 atm
Partial pressure of H2O = (mole fraction of H2O)(total pressure) = (0.5)(16 atm) = 8 atm.
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when a system is at equilibrium, the reaction enter the correct word or phrase: is equal the equilibrium constant.
When a chemical system is in equilibrium, it signifies that the forward and reverse reactions are occurring at the same pace. This implies that the concentration of reactants and products.
remains constant over time. The equilibrium constant (Kc) is the ratio of the concentration of products to their stoichiometric coefficients at equilibrium to the concentration of reactants to their stoichiometric coefficients. It is a constant measure of the relative intensity of forward and reverse reactions at a particular temperature and pressure. At equilibrium, the forward reaction rate equals the reverse reaction rate, ensuring that the concentration of reactants and products stays constant. when a system is at equilibrium, the reaction enter the correct word or phrase: is equal the equilibrium constant. The system is said to be in this state.The forward and reverse reflexes are continuously balanced in a condition of dynamic equilibrium.
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The compound diborane (B2H6) was at one time considered for use as a rocket fuel. Its combustion reaction is
B₂H6(g) +3O2(Ł)→ 2 HBO2(g) + 2H₂O(Ł)
The fact that HBO2, a reactive compound, was produced rather than the relatively inert B₂O3 was a factor in the discontinuation of
the investigation of the diborane as a fuel. What mass of liquid oxygen (LOX) would be needed to burn 259.9 g of B₂H6,
Answer in units of g.
What mass of HBO2 is produced from the combustion of 103.7 g of B2H6?
Answer in units of g.
a) The mas of the oxygen is 893 g
b) The mass of the oxide is 326 g
What is the stoichiometry of the reaction?
We know that the stoichiometry of the reaction would depend on the balanced reaction equation as we can see in the question that we have here.
Now we know that;
Number of moles of borane = 259.9 g/28 g/mol
=9.3 moles
If 1 mole of borane reacts with 3 moles of oxygen
9.3 moles of borane reacts with x moles of oxygen
x =27.9 moles
Mass of oxygen = 27.9moles * 32 g/mol = 893 g
b)
Number of moles of borane = 103.7 g/28 g/mol
=3.7 moles
If 1 moles of borane produces 2 moles of the oxide
3.7 moles of borane would produce 3.7 * 2/1
= 7.4 moles
Mass of the oxide = 7.4 moles * 44 g/mol
=326 g
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An electromagnet can be made by wrapping wire around which object?
By encircling an iron core with wire, an electromagnet can be created. The required magnetic field is increased when the core is constructed of a ferromagnetic material like iron.
An electromagnet is what?By running electricity through the wire that is twisted around an iron core, a transient magnet is created.
Ferromagnetic materials are those that, even in the absence of an external magnetic field, exhibit spontaneous net magnetization at the atomic level.
How do magnetic fields work?The area where the force of magnetism acts around a magnetic material or a moving electric charge is known as the magnetic field, which is a vector.
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describe an example of temperature causing a change in the size of matter.
Change in temperature when quicklime reacts with water.
What's an example of a temperature change?When ice cubes are separated from the freezer and conducted to room temperature, they turn into a liquid. This temperature is the boiling point of water. Heat makes water molecules move fast. Cooling air causes water vapor to change to a liquid. Water changes rapidly into a gas when water is heated to a temperature of 100 degrees Celsius or 212 degrees Fahrenheit.
When energy is free in an exothermic reaction, the temperature of the reaction mixture increases. When energy is soal up in an endothermic reaction, the temperature decreases.
So we can conclude that Some chemical reactions are distinguished by changes in temperature.
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What is the density of the cake in grams/cm3 if it is in a 9.0 X 13 inch pan and in an inch tall and weighs 3.4 pounds?
The density of the cake in grams/cm3 if it is in a 9.0 X 13 inch pan and in an inch tall and weighs 3.4 pounds is 5.189g/cm³.
What is Density?This is a term which is referred to as the mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume.
The mass is 3.4 pounds which must be converted to grams. One pound is equal to 453.592 grams therefore 3.4pound = 3.4 pounds × 453.592 = 1542.2g.
9.0 X 13 inch pan and in an inch tall therefore the volume is 117inch³ when converted to cm will be 117inch³ × 2.54 = 297.18cm³ .
Density = mass/volume
= 1542.2g / 297.18cm³ = 5.189g/cm³.
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Photochemical smog forms when ________ and ________ are trapped by a thermalinversion and ozone, nitrogen dioxide and PAN form.A) hydrocarbons; leadB) volatile organic compounds; oxides of nitrogenC) carbon monoxide; sulfur dioxideD) carbon dioxide; lead
Photochemical smog forms when (B) volatile organic compounds and oxides of nitrogen are trapped by a thermal inversion and ozone, nitrogen dioxide, and PAN.
When sunlight interacts with nitrogen oxides and volatile organic compounds (VOCs), a mixture of pollutants known as photochemical smog is produced. This results in the formation of a brown haze that hangs over urban areas. Since there is more sunshine in the summer, this phenomenon tends to happen more frequently during that time of year. Primary sources of pollution.
When sunlight interacts with nitrogen oxides and volatile organic compounds (VOCs), a mixture of pollutants known as photochemical smog is produced. This results in the formation of a brown haze that hangs over urban areas.
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How many atoms in 56g of nitrogen gas
56g of nitrogen gas has 4 moles of the nitrogen atom.
How can you figure out how many moles of nitrogen gas there are?N2 has a molar mass of 28.014 g/mol.
n = m/M,
where m = molar mass in g/mol,
n = moles, and
m = mass in grams.
M is a fraction, thus you can divide it by multiplying by the reciprocal of that fraction.
To one significant figure, n = 1 g N2 (1 mol N2/28.014 g N2) = 0.04 mol N2.
How many atoms make up a gaseous nitrogen?Two nitrogen atoms are securely linked together to form the chemical molecule known as molecular nitrogen (N2).
At normal temperatures and pressures, molecular nitrogen is a colorless, odorless, tasteless, and inert gas.
Given is the expression for the number of moles formula.
The formula for moles is.
Mass of material / Mass of one mole equals the number of moles.
95 / 86.94 equals the number of moles.
In response to the query:
56g is the mass of nitrogen gas.
Nitrogen has a molecular weight of 14.
Mass / molecular mass Equals number of moles.
= 56/14.
= 4 moles.
Therefore, 56g of nitrogen gas has 4 moles of the nitrogen atom.
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select all statements that correctly describe the mechanism of the reduction of acid chlorides and esters with a metal-hydride reducing agent.
The statements that correctly describe the mechanism of the reduction of acid chlorides and esters with a metal-hydride reducing agent.
An aldehyde is produced in Step 2 of the mechanism. In Step 2 the π bond is re-formed. In Step 2 of ester reduction, an alkoxide leaving group is expelled from the tetrahedral intermediate.Definition of ReductionReduction is a reaction in which the oxidation number decreases and electrons gain. It can be said that reduction is a reaction in which a substance loses oxygen.
Definition of OxidationOxidation is a reaction that has an increase in oxidation number and a decrease in electrons. It can be said that oxidation is a reaction in which a substance binds oxygen.
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in the dna isolation process, is used to break down the protein complexes and allow the dna molecules to easily precipitate. MULTIPLE CHOICE A. meat tenderizer B. salt C. none of the answer choices are correct. D. ethanolsodium chloride
In the DNA isolation process, meat tenderizer is used to break down the protein complexes and allow the DNA molecules to easily precipitate.
The purification of DNA from a sample is accomplished by a process known as DNA isolation, which makes use of both physical and chemical techniques. An enzyme known as meat tenderizer is responsible for further dissolving DNA by reducing the strength of protein-DNA interactions. Where the alcohol and strawberry mixture come together, isopropyl alcohol causes the DNA strands that were previously dissolved to become solid. The strands are easier to clump and stick together because to the salt. When combined with the meat, these proteolytic enzymes break down the proteins in the muscle as well as hydrolyze collagen and elastin, which contributes to the tenderization of the meat.
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which of the following is an incorrect statement about the number of electrons lost or gained by a representative element during ion formation?
The incorrect statement about the number of electrons that is lost or gained by a representative element during the ion formation is E) no correct response .
The correct statements are given as :
A) The number is usually 3 or less. This statement is true about the number of electrons that is lost or gained by a representative element during the ion formation.
B) The number is governed by the octet rule. This statement is true.
C) The number is related to the position of the element in the periodic table. This statement is true about the number of electrons that is lost or gained by a representative element during the ion formation
This question is incomplete, the complete question is :
Which of the following is an incorrect statement about the number of electrons lost or gained by a representative element during ion formation?
A) The number is usually 3 or less.
B) The number is governed by the octet rule.
C) The number is related to the position of the element in the periodic table.
D) more than one correct response
E) no correct response
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refer to the figure showing the structure of methyl acetate. which statement explains why this compound can form hydrogen bonds with water but not with itself?
Refer to the figure showing the structure of methyl acetate. why this compound can form hydrogen bonds with water but not with itself because This compound lacks a hydrogen atom in a highly polar bond.
ABOUT METHYL ACETATEMethyl acetate, also known as MeOAc, acetic acid methyl ester or methyl ethanoate, is a carboxylate ester with the formula CH3COOCH3. It is a flammable liquid with a characteristically pleasant smell reminiscent of some glues and nail polish removers. Methyl acetate is occasionally used as a solvent, being weakly polar and lipophilic, but its close relative ethyl acetate is a more common solvent being less toxic and less soluble in water. Methyl acetate has a solubility of 25% in water at room temperature. At elevated temperature its solubility in water is much higher. Methyl acetate is not stable in the presence of strong aqueous bases or aqueous acids. Methyl acetate is not considered a VOC in the USA.
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Systemic lupus erythematosus, or lupus, affects a few million people in the United States.
Most of these people are young women. Lupus is a chronic, autoimmune disease that
affects connective tissue in any part of the body. An attack can damage organs and the
nervous system. What conclusion can be drawn about lupus?
A. Most victims of lupus are middle-aged women.
B. Hormones most likely are unrelated to the lupus disease.
C. Lupus is easy for a physician to diagnose.
D. Lupus can affect almost every system of the body.
E. It is uncommon to have skin problems with lupus.
The conclusion that can be drawn about lupus is that: Lupus can affect almost every system of the body. Option D. is the correct answer.
What is Lupus (SLE)?
This refers to a disease that happens when your body's immune system attacks your own tissues and organs (autoimmune disease).
Lupus (SLE) can affect the following body parts: joints, skin, kidneys, blood cells, brain, heart and lungs.
Symptoms differ from person to person but can include fatigue, joint pain, rash and fever. These can get worse from time to time (flare up) and then improve.
Lupus has no cure. Current treatments are based on improving quality of life by controlling symptoms and minimizing flare-ups. This starts with lifestyle modifications, including sun protection and diet. Also, disease management includes medication such as anti-inflammatories and steroids.
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A gaseous reaction goes to completion in a piston-cylinder at constant pressure. after the reaction, the temperature is found to remain the same but the volume has halved. which of the following balanced reactions is consistent with these results?
a. N2 (g) + 3H2(g) → 2NH3(g)
b. A(g) + B2(g) → AB2(g)
c. 2AB(g) + B2(g) → 2AB2(g)
A gaseous reaction goes to completion in a piston-cylinder at constant pressure. after the reaction, the temperature is found to remain the same but the volume has halved is A(g) + B2(g) → AB2(g). so, option (b) is correct.
What is gaseous reaction ?
A chemical reaction known as a "gas evolution reaction" produces gases like oxygen or carbon dioxide as one of its byproducts. A fume chamber can be used to conduct gas evolution reactions when the byproduct gases are explosive or hazardous to breathe.
What is pressure ?
The pressure is nothing but the vital force applied to the object or particle. Pressure calculates how much force will be gone or extended to the object. Pressure is the force that is perpendicular to the power of extension. The standard unit of pressure is the pascal (pa).The formula for pressure, p= F/ Ap= pressure, F= magnitude, A= area of the surface pressure is the scalar quantity. Pressure is also expressed in the term atmospheric pressure, atm.
Therefore, gaseous reaction goes to completion in a piston-cylinder at constant pressure. after the reaction, the temperature is found to remain the same but the volume has halved is A(g) + B2(g) → AB2(g). so, option (b) is correct.
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for the problem listed in part b), what is the sodium carbonate concentration when the solution is prepared. g
500 mL of water contain 1.00 moles of sodium carbonate. As opposed to moles per 500 mL, moles per liter is a more practical way to represent concentration.
What is the sodium carbonate?Na2CO3 is the chemical formula for sodium carbonate, a diazonium salt of carbonic acid. Furthermore, it goes by the names soda crystals, soda ash, and washing soda. This inorganic substance may dissolve in water and produces sodium hydroxide and carbonic acid when it does. It has a white powdery appearance and no odor when it is pure.Titration with standard hydrochloric acid using methyl orange as the indicator yields the following equation: Na2CO3 + 2HCl = 2NaCl + H2O + CO2. This yields the Na2CO3 content of the given sample. Na2CO3 has a molecular weight that is half that of its corresponding weight (M). It follows that M/2 g of Na2CO3 is equivalent to 1000 ml of 1 N HCl.Example:
After dissolving the sodium carbonate, the volumetric flask was filled to the 500 mL line.One mole of sodium carbonate per 500 mL is the concentration.Moles per liter are a more practical unit of measurement for concentration than moles per 500 mL.To Learn more About sodium carbonate refer To:
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Plasma is an electrically charged state of matter that is created from superheating a gas. In a bottle containing plasma, there are 100 negatively charged ions and 96 positively charged ions. What is the charge of the bottle of plasma?
a. +4 Charge
b. +196 Charge
c. -196 Charge
d. -4 Charge
Answer:
-4
Explanation:
The charge of the bottle of plasma would be -4, because 100 negatively charged ions (-) have a total charge of -100, and 96 positively charged ions (+) have a total charge of 96. When you subtract -100 from 96, you get -4.
5 F2 (g) + 2 NH3 (g) → N2F4 (g) + 6 HF (g) If you reacted 2.42 moles of F2 how many moles of HF would be produced?
Answer:
The balanced equation is telling us that for every 5 moles of F2 that react, 6 moles of HF are produced.
To find out how many moles of HF would be produced if we have 2.42 moles of F2, we can use the following conversion:
moles of HF = (moles of F2) x (moles of HF/moles of F2)
moles of HF = (2.42 moles) x (6 moles / 5 moles)
moles of HF = 2.92 moles
So 2.92 moles of HF would be produced if you reacted 2.42 moles of F2.
make a claim about the length of time nitrogen spends in its reservoirs compared to the carbon cycle.
When compared to the carbon cycle, the nitrogen cycle has a longer residence time in its reservoirs. Nitrogen gas accounts for 78% of the Earth's atmosphere.
yet it is not commonly available in plant-usable forms. Nitrogen must first be transformed into a useable form, such as ammonia or nitrate, through the nitrogen fixation process. This process can occur naturally, such as by lightning or bacterial activity, or through human activities, such as fertilizer application. Nitrogen, once useful, may be taken up by plants and animals and eventually returned to the atmosphere via denitrification. Because the entire process might take decades to millennia, the nitrogen cycle is substantially slower than the carbon cycle. The polypeptide is a kind of protein. The The peptide bond also permits the polypeptide to be flexible, which is essential for its operation.The initial amino acid in a peptide is known as the N-terminal (NH2) residue, while the last amino acid is known as the C-termina.
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According to the passage, which of the following compounds can the worker use to catalyze the cleavage of a triglyceride (base-catalysis)?
A) HCl (aq)
B) NaCl (aq)
C) NaOH (aq)
D) Na2SO4 (aq)
Option C: According to the passage, base-catalyzed triglyceride (ester) cleavage occurs. NaCl and Na2SO4 are salted, while HCl is an acid. Only NaOH is a base that can catalyze ester saponification.
In chemistry, an ester is a compound derived from an acid (organic or inorganic) in which at least one acidic hydrogen atom of that acid (H) is replaced by an organyl group (R). A carboxylic acid and alcohol substitution reaction is an example of ester formation. Glycerides are fatty acid esters of glycerol; they are important in biology because they are one of the main classes of lipids and make up the majority of animal fats and vegetable oils. Esters can be formed from oxoacids (for example, acetic acid, orthocarbonic acid, sulfuric acid, perchloric acid, nitric acid, and xanthic acid esters), but also from acids that do not contain oxygen (e.g. esters of thiocyanic acid, hydrogen chloride, trithiocarbonic acid, tricyanomethane).
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PLSS HELP ITS THE LAST QUESTION I NEED!!!!!!! ALOT OF POINTS!!!
Which of the following statements is true?
People in an experiment do not have the right to refuse participation.
Scientists must make moral decisions on controversial issues.
Honest mistakes do not need to be corrected because they are not made on purpose.
If you don't know a law exists, it's ok to not follow it.
The true statement on conduct in experiments is B. Scientists must make moral decisions on controversial issues.
How should scientists behave in experiments ?Scientists have an ethical responsibility to conduct experiments in a responsible and unbiased manner, with the goal of advancing scientific knowledge and understanding. In order to fulfill this responsibility, scientists should adhere to a number of principles and guidelines when conducting experiments.
This is why they must make moral decisions when it comes to controversial issues.
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Reaction rate is expressed in terms of changes in the concentration of reactants and products. Write a balanced equation for the following rate expression:
Rate = − (Δ[CH4]/Δt) = − 1/2 (Δ[O2]/Δt) = 1/2 (Δ[H2O]/Δt) = Δ[CO2]/Δt You do not need to include the states of matter in your answer.
The balanced equation for this reaction is:
CH4 + 2O2 -> CO2 + 2H2O
This equation is balanced because each element has the same number of atoms on both sides of the equation. According to the rate expression, the concentrations of O2, H2O, and CO2 are all inversely correlated with the concentration of CH4. This implies that O2, H2O, and CO2 concentrations increase as CH4 concentrations fall. According to the coefficient of 1/2 in front of O2 and H2O, the reaction is happening at a 2:1 ratio, which means that for every CH4 molecule that reacts, 2 molecules of O2 and 2 molecules of H2O are created. The absence of the CO2 coefficient in the rate expression indicates that the concentration of CO2 is directly proportional to the change in concentration of CH4.
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HELPPP ASAP!!!
Compare the Earth’s mantle and core by writing each characteristic in the correct area of the
CORE & MANTLE
Venn diagram.
Semi-solid
Less dense
Made of rock
Composed of two parts
Creates Earth’s magnetic field
More dense
Solid and liquid
Mostly metallic
Thickest layer of Earth
Increased pressure with depth
Increased temperature with depth
Answer: Ok here you go....
Explanation:
Core:
Semi-solid
Composed of two parts
Create Earth's magnetic field
More Dense
Mostly metallic
Both:
Increased pressure with depth
Increased temperature with depth
Mantle:
Less Dense
Made of rock
Thickest layer of Earth
Pretty sure solid and liquid is the core but I'm not certain.
1 . 6.11 mol SF6 to L at STP
2. 16 mol bromine monochloride to L at STP
3. 30.3 g magnesium oxide to mol
4. 17.4 mol Mn2(Cr2O7)3 to g
5. 1.71 mol Cr2(SO4)3
pls help me
The number of molecules in 1.71 moles of magnesium oxide is 0.56.02310 23 =3.011510 23.
What amount of molecules are there?Avogadro's number (6.022140857 1023) states that all substances have exactly the same number of molecules in a mole.
Determine the substance's molecular weight for one mole in order to calculate the necessary number of molecules. Next, divide the molar mass value by the molecular mass, and multiply the result by the Avogadro constant.
17.4 mol Mn2(Cr2O7)3 to g
6.11 mol SF6 to L at STP
=1L -7.466L⟶
Avogadro calculated that a mole of magnesium oxide comprises 6.023 x 6.11 molecules.
The number of molecules in 1.71 moles of magnesium oxide is 0.56.02310 23 =3.011510 23.
The complete question is Calculate the number of molecules6.11 mol SF6 to L at STP
2. 16 mol bromine monochloride to L at STP
3. 30.3 g magnesium oxide to mol
4. 17.4 mol Mn2(Cr2O7)3 to g
5. 1.71 mol Cr2(SO4)3
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London dispersion forces or simply dispersion forces are the______ intermolecular force. It is an attractive force that arises from surrounding_____ dipole moments in_________ molecules or species These_________ dipole moments arise when there are instantaneous deviations in the electron clouds of the________ species. Surrounding molecules are influenced by these______ dipole moments and a chain reaction results in which subsequent weak; dipole-induced dipole interactions are created: These cumulative dipole- induced dipole interactions create the attractive dispersion forces. Dispersion forces are the forces that make_______ substances condense to liquids and freeze into solids as temperatures decrease. Your answer choices are: weakest; temporary and nonpolar: Several of your choices are used more than once_
"London dispersion forces or simply dispersion forces are the weakest intermolecular force. It is an attractive force that arises from surrounding temporary dipole moments in nonpolar molecules or species. These temporary dipole moments arise when there are instantaneous deviations in the electron clouds of the nonpolar species. Surrounding molecules are influenced by these temporary dipole moments and a chain reaction results in which subsequent weak; dipole-induced dipole interactions are created: These cumulative dipole-induced dipole interactions create the attractive dispersion forces. Dispersion forces are the forces that make nonpolar substances condense to liquids and freeze into solids as temperatures decrease".
London dispersion forces, also known as dispersion forces, are the weakest of the intermolecular forces. They are an attractive force that arises between all types of molecules, including nonpolar molecules, as a result of temporary fluctuations in the electron distribution. These fluctuations lead to the creation of temporary dipoles in the molecule, which then interact with neighboring molecules and produce an attractive force. The strength of the London dispersion forces increases as the size of the molecule increases, and as a result, they play a significant role in determining the properties of many materials, such as the boiling and melting points of nonpolar substances.
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If an electron emits 3 eV of energy, what is the corresponding wavelength of the emitted photon? (Note: 1 eV = 1.60 x 10-19 J, h = 6.626 x 10-34 J x s)
If an electron emits 3 eV of energy, what is the corresponding wavelength of the emitted photon will be 4.12 × 10 ^-7.
The distance between corresponding points (adjacent crests) in adjoining cycles of such a waveform signal carried in space or along a wire is defined as the wavelength. This length is typically defined in wireless communication systems as meters (m), centimeters (cm), or millimetres (mm) (mm).
E = hc/ wavelength...(i)
It is given that,
E = ev
h = 6.626 x 10-34 J x s
Putting the values of given data in above equation.
Wavelength = hc/E
Wavelength = 6.626 x 10-34 J x s ×3× 10^8 /3 ×1 .60 x 10-19 J,
Wavelength = 19.8 × 10^-26 /4.8 x 10-19 J
Wavelength = 4.12 × 10 ^-7.
Therefore, the wavelength will be 4.12 × 10 ^-7.
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