Answer:
A banana, like most other lifeforms, is about 70% water, and all the potassium it contains already exists in the form of K+ ions dissolved in water. Which is why bananas do not explode in water, or spontaneously combust.
The bond order for a double bond is
Answer:
B.Two
Explanation:
What animal has a see through body?
please help me with that
Answer:
This is an inaccurate portrayal because sound is not heard in space, so the space travelers would not hear the explosion.
Explanation:
Sound travels in waves and vibrates molecules so you are able to hear it, but in space, there are no molecules to vibrate, just empty space, so no sound is heard.
A 1 mL sample weighs 4 g, the density of the sample is
The law that states when different compounds are formed by a combination of the same elements, different masses of one element combine with the same fixed to other elment
Answer:
The law of multiple proportions states that whenever the same two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers.
what structure and bonds are formed in group 1 elements
Can someone help me with these two?
Answer:
adding
opposite
Explanation:
dont blame me if u get them wrong
Answer:
first one is adding i belive and second one is opposite
Explanation:
Please help I’m so confused on this it’s stoichiometry
Answer:
48.27g Na
Explanation:
To start we need to balance the equation. The trick is to make sure both sides have equal amounts of each atom:
2Na + Cl2 --> 2NaCl
Now we can use sociometry
We have 75 g of Cl2, and for every 1 mole of Cl2, there are 70.9 grams:
[tex]75g Cl2 * \frac{1mole Cl2}{70.9g Cl2}= 1.05 mole Cl2[/tex]
Now we have moles of Cl2. To get to grams of Na, we need to first use mole to mole ratio:
[tex]1.05mole Cl2 *\frac{2 mole Na}{1 mole Cl2} =2.1 mole Na[/tex]
From here we convert moles of Na into grams of Na
[tex]2.1mol Na*\frac{22.99g Na}{1 mole Na} = 48.27g Na[/tex]
It's usually easier to just make one singular equation with all of these smaller equations.
[tex]75gNa*\frac{1molCl2}{70.9gCl2} *\frac{2mol Na}{1 mol Cl2} *\frac{22.99g Na}{1 mol Na}=48.27 gNa[/tex]
The trick to sociometry is making sure your units cancel out until you only have the unit you want. If there are moles of Na in the numerator, there needs to be moles of Na in the denominator. If there are grams of Cl2 in the numerator, there needs to be grams of Cl2 in the denominator and so one and so on
How does fertilizer benefit the daily lives of people?
Answer:
Fertilizers play an important role in providing crops with the nutrients they need to grow and be harvested for nutritious food. Fertilizers help deliver enough food to feed the world's population. ...
For example, micronutrients such as zinc are important to human nutrition, especially children.
Explanation:
Hope it is helpful.....
What element does Ca-37 turn into when it gives off radiation?
K-37
K-39
Sc-37
Sc-45
Convert 75g of NaOH to moles
Answer:
75g and I no inglish I my espanish perfec
Explanation:
A compound X has the following percentage composition 66.7% carbon, 11.1% hydrogen and 22.2% oxygen .Calculate the empirical formula of X.The relative molecular mass of X is 72 calculate the molecular formula
Explanation:
c. h. o
66.7%. 11.1%. 22.2%
____. ____. ____
12. 1. 16
1.558. 11.1. 1.39. (divide by the smallest)
1. 8. 1
empirical formula=ch8o
If each water molecule contains 2 hydrogen atoms, how many total oxygen atoms in 20 water molecules?
10
20
40
60
. Carbamide (CH4N2O), can be synthesized by the reaction of ammonia (NH3) with carbon
dioxide (CO2):
2 NH3 (aq) + CO2 (aq) CH4N2O (aq) + H2O (l)
An industrial synthesis of urea obtains 87.5 kg of urea upon reaction of 68.2 kg of ammonia
with 105 kg of carbon dioxide. Determine the limiting reactant, theoretical yield of urea and percent yeild for the reaction
Answer:
NH₃ is the limiting reactant.Theoretical yield = 120 kg% yield = 72.9 %Explanation:
2NH₃ (aq) + CO₂ (aq) → CH₄N₂O (aq) + H₂O (l)First we convert the given masses of reactants to moles, using their respective molar masses:
68.2 kg NH₃ ÷ 17 kg/kmol = 4.01 kmol NH₃105 kg CO₂ ÷ 44 kg/kmol = 2.39 kmol CO₂2.39 kmol of CO₂ would react completely with (2.39 * 2) 4.78 kmol of NH₃. There are not as many NH₃ kmoles so NH₃ is the limiting reactant.
We calculate how much urea would form with a 100% yield, using the moles of limiting reactant:
4.01 kmol NH₃ * [tex]\frac{1kmolCH_4N_2O}{2kmolNH_3}[/tex] = 2.00 kmol CH₄N₂OWe convert that amount to kg:
2.00 kmol CH₄N₂O * 60 kg/kmol = 120 kg CH₄N₂OFinally we calculate the percent yield:
87.5 kg / 120 kg * 100% = 72.9 %Which half reaction is associated with the anode?
Sn(s) —> Sn2+ (aq) + 2e-
Sn2+ (aq) + 2e- → Sn(s)
Pb2+ (aq) + 2e-->Pb(s)
Pb(s)->Pb2+ (aq) + 2e-
Answer:
vgf
Explanation:
Answer:
its either A or B
Explanation:
took the test twice and guessed LOL
its not C or D :>
Should vaccinations be required for students to attend public school?
Answer:
I don't think so for now, there hasn't been much research done with the vaccine and children so we really don't know how children's bodies will react to it. Once more studies are done with the vaccine and children and is proven safe then yes, kids should use it in order to attend public school.
What is the volume of 0.05 mol of neon gas at 1.45 atm and 275K?
Answer:
sdasdasddsafsadsfds
Explanation:
Which of the following sentences uses commas correctly?
-----------------------------------------------------------------------------------------------------------------------------
I got all of the answers on the test correct, didn't I?
I, got all of the answers on the test correct didn't I?
I got all of the answers, on the test correct didn't I?
I got all of the answers on the test, correct didn't I?
How many atoms are in 12 moles of sodium?
Answer: There are 1.20 x 1024 atoms of sodium in 2 moles
Explanation:
Convert Fahrenheit temperature
to Kelvin scales
Answer:
K = (F – 32)5/9 + 273.15
Explanation:
You basically convert Fahrenheit to Celcius and then to Kelvin
Here's the entire formula:
K = (x °F – 32)5/9 + 273.15
which type of rock is rhyolite A.Intusive igneous B.Sedimentary C.Extrusive igneous D.Metamorphic
Answer:
C - Extrusive igneous
Explanation:
Rhyolite is an extrusive igneous due to the high silica content, the lava is very dangerous.
Answer:
Its C
Explanation:
A P E X
3. What is an
electrolyte?
Answer:
An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. ... A substance that dissociates into ions in solution acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, magnesium, and phosphate are examples of electrolytes.
Explanation:
Please give thanks to all my answers and please mark as brilliant and please follow me
Animals get energy from the food that they eat. However, when the molecules from the food enter your cells, how do the molecules turn in to energy?
Question 3 options:
The glucose molecules from the food are broken down by the mitochondria in the cell to produce ATP which the cells use as energy.
The ATP is broken down into glucose which the cells use for energy.
Upon hitting the stomach, the food molecules are changed to energy molecules which fuel the body.
The cells absorb ATP from food and use it for energy.
Answer:
The ATP is broken down into glucose which the cells use for energy.
How does a temperature increase cause the rate of a reaction to increase?
A. It increases the kinetic energy of the molecules.
B. It decreases orientation requirements of the molecules.
C. It increases the equilibrium constant for the reaction.
D. It decreases the activation energy of the reaction.
Answer:
B
Explanation:
"The temperature increases cause the rate of a reaction to increases the kinetic energy"
What is rate of reaction?
The reaction rate, also known as the rate of reaction, is the rate for which a chemical reaction occurs, and is proportional to increase in product concentration per unit time and the reduction in reactant concentration per unit time. The rate of reaction varies greatly.
What is kinetic energy?
An object's kinetic energy is the energy it has as a result of its motion. It is the amount of work required to push a body of a given mass from rest to a certain velocity. The body keeps its kinetic energy gained during acceleration unless that speed changes.
To know more about rate of reaction click here.
https://brainly.com/question/3334857.
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Scientist use capital letters (H) and lowercase letters (h) to represent genes. What type
of gene is represented by a capital letter?
Expressive
O Regressive
O Dominant
Recessive
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Which substances are released during cellular respiration?
Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.
Draw the structures of organic compounds A and B. Indicate stereochemistry where applicable The starting material is ethyne, a carbon carbon triple bond where each carbon is bonded to a hydrogen. Step 1 is N a N H 2 followed by 1 equivalent of C H 3 C H 2 C H 2 B r to form compound A. Compound A reacts with hydrogen and lindlar's catalyst to form compound B. COmpound B reacts with H 2 O and H 3 O Plus to form a 5 carbon chain with a hydroxy substituent on carbon 2.
Answer:
See explanation below
Explanation:
In this case we have the starting reactant which is the ethine, In the first step reacts with NaNH₂, a strong base. This base will substract the hydrogen from one of the carbon of the ethine, and form a carbanion. This will react with the propane bromide, displacing the bromine and forming a 5 carbon chain with the triple bond on the carbon 1 and 2.
In the second step, reacts with the lindlar catalyst to do a reduction, and form a double bond between carbon 1 and 2. In essence, compound A is similar to compound B.
Finally B reacts with water in acid and makes a addition reaction, and form an alcohol.
The whole process can be seen in the picture below.
Hope this helps
Which of the following can be calculated from the mass of the reactants used in a chemical reaction? (Select all that apply)
Theoretical yield of products
Amount of limiting reactant used in a reaction
Actual yield of products
Amount of excess reactant from a reaction
Answer:
Can you explain it more please
Explanation:
List four kinds of energy. Give a brief definition of each.
Answer:
Mechanical Energy- Energy that result from movement or the location of the object. Is the sum of kinetic and potential energy.
Thermal Energy- Thermal energy or heat energy reflects the temperature difference between two systems.
Nuclear Energy- is energy resulting from changes in the atomic nuclei or from nuclear reactions.
Chemical Energy- results from chemical reactions between atoms or molecules.
More:
Kinetic energy- is the energy of motion of a body. It ranges from 0 to a positive value.
Electromagnetic energy- (or radiant energy) is energy from light or electromagnetic waves.
Sonic energy- is the energy of sound waves. Sound waves travel through the air or another medium.
Gravitational energy- energy associated with gravity involves the attraction between two objects based on their mass.
Ionization energy- is the form of energy that binds electrons to the nucleus of its atom, ion, or molecule.
Potential energy- is the energy of an object's position.
Explanation:
Hope this helps
Looking at the following equation, which is the correct order of coefficients?
NH3 + O2 --> NO + H2O
2NH3 + 302---> 2NO + 3H20