Answer:
yes
Explanation:
What happens to the number of protons in a cation?
Answer:
number of protons is more than the number of electrons.
Explanation:
A cation is a positively charged ion.
An ion is an atom that has lost or gained electron(s). In an ion, the number of protons and electrons are not the same.
Number of protons is the number of positively charged particles
Number of electrons is the number of negatively charged particles.
For a cation, which is positively charged, the number of protons is more than the number of electrons.
Therefore, in cations, we have more protons than electrons.
What is the correct name of CUCIO2
Chemistry
Answer:
Copper(II) Chlorite = Cu(ClO2)
Explanation:
how you write the compound is very important as well
C3H8 + 5 O2 → 3 CO2 + 4 H2O
How many grams of oxygen does it take to produce 90.6 grams of Carbon Dioxide
Answer:
Mass = 112 g
Explanation:
Given data:
Mass of CO₂ produced = 90.6 g
Mass of oxygen needed = ?
Solution:
Chemical equation:
C₃H₈ + 5O₂ → 3CO₂+ 4H₂O
Number of moles of CO₂:
Number of moles = 90.6 g/ 44 g/mol
Number of moles = 2.1 mol
Now we will compare the moles of CO₂ and oxygen:
CO₂ : O₂
3 : 5
2.1 : 5/3×2.1 = 3.5
Mass of oxygen needed:
Mass = number of moles × molar mass
Mass = 3.5 mol × 32 g/mol
Mass = 112 g
What is MnF3 + AL ? If anyone would
Be so kind
Red blood cells are constantly being produced in your body. Another body system cooperates with the cardiovascular system in the production of these cells. What is this system and how does it cooperate?
The following chemical reaction takes place in aqueous solution:
AgF(aq)+Nal(aq) ——> Agl(s)+NaF(aq)
Write the net ionic equation for this reaction.
The net ionic equation : Ag⁺(aq)+l⁻(aq) ⇒ Agl(s)
Further explanationGiven
Reaction
AgF(aq)+Nal(aq) ——> Agl(s)+NaF(aq)
Required
The net ionic equation
Solution
The equation of a chemical reaction can be expressed in the equation of the ions
In the ion equation, there is a spectator ion that is the ion that does not react because it is present before and after the reaction
When these ions are removed, the ionic equation is called the net ionic equation
AgF(aq)+Nal(aq) ——> Agl(s)+NaF(aq)
Ag⁺(aq)+F⁻(aq)+Na⁺(aq)+l⁻(aq) ⇒ Agl(s)+Na⁺(aq) + F⁻(aq)
Ag⁺(aq)+l⁻(aq) ⇒ Agl(s)
A chemist prepares a solution of silver (I) perchlorate (AgCIO4) by measuring out 134.g of silver (I) perchlorate into a 50.ml volumetric flask and filling the flask to the mark with water. calculate the concentration in mol/L of the silver (I) perchlorate soluation
Answer:
13 M
Explanation:
Molar mass of AgCIO4 = 207 g/mol
Number of moles of AgCIO4= 134/207= 0.65 moles
Number of moles= concentration × volume
Concentration = number of moles/volume
Concentration = 0.65 × 1000/50 = 13 M
Need help asap!
1. Given that the electronegativity of sulfur (S) is 2.5 and that of silicon (Si) is 1.8, which of the following best describes the chemical bonding in silicon monosulfide (SiS)?
A. ionic: transfer of electrons from silicon to sulfur
B. nonpolar covalent: equal sharing of electrons between silicon and sulfur
C. polar covalent: electrons shared between silicon and sulfur but attracted more to the sulfur
D. polar covalent: electrons shared between silicon and sulfur but attracted more to the silicon
2. Which of the following is a molecular compound?
A. Mg3N2
B. NH3
C. AlCl3
D. LiBr
3. Potassium (K) reacts with a certain nonmetallic element (Z) to form a compound with the general formula KZ; where element Z is a diatomic gas at room temperature. What is element Z?
A. Oxygen
B. Fluorine
C. Nitrogen
D. Hydrogen
Answer: 1. C. polar covalent: electrons shared between silicon and sulfur but attracted more to the sulfur
2. B) [tex]NH_3[/tex]
3. B) Fluorine
Explanation:
1. A polar covalent bond is defined as the bond which is formed when there is a difference of electronegativities between the atoms.
Electronegativity difference = electronegativity of sulphur- electronegativity of silicon = 2.5 -1.8 = 0.7
Thus as electronegativity difference is less than 1.7 , the cond is polar covalent and as electronegativity of sulphur is more , the electrons will be more towards sulphur.
2. A molecular compound is usually composed of two or more nonmetal elements. Example: [tex]NH_3[/tex]
Ionic compound is formed by the transfer of electrons from metals to non metals. Example: [tex]Mg_3N_2[/tex] , [tex]AlCl_3[/tex] and [tex]LiBr[/tex]
3. For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
Here K is having an oxidation state of +1 and as the compound formed is KZ, the oxidation state of non metallic element Z should be -1. Thus the element Z is flourine which exists as diatomic gas [tex]F_2[/tex]
Sulfur dioxide (SO2) is an unwelcome result
of burning soft coal in power plants. Some
of the SO2 ends up as sulfuric acid in acid
precipitation. The net reaction is
2 SO2(g) + O2(g) + 2 H2O(l) —— 2 H2SO4(l)
What mass in grams of SO2 is needed to
react with 1771 g of O2?
Answer in units of g.
Answer:
I believe it is 1771 divided by 4
Explanation:
ammonium phosphate is an important ingredient in many solid fertilizers. It can be made by reacting aqueous phosphoric acid with liquid ammonia. Calculate the moles of ammonium phosphate produced by the reaction of 2.4 mol of ammonia. Be sure your answer has a unit symbol, if necessary, and round it to significant digits.
Answer:
0.57 moles (NH4)3PO4 (2 sig. figs.)
Explanation:
To quote, J.R.
"Note: liquid ammonia (NH3) is actually aqueous ammonium hydroxide (NH4OH) because NH3 + H2O -> NH4OH.
H3PO4(aq) + 3NH4OH(aq) ==> (NH4)3PO4 + 3H2O
Assuming that H3PO4 is not limiting, i.e. it is present in excess
1.7 mol NH4OH x 1 mole (NH4)3PO4/3 moles NH4OH = 0.567 moles = 0.57 moles (NH4)3PO4 (2 sig. figs.)"
Measure that affects the thermal energy of matter but not it's temperature.
Answer: mass
Explanation:
Sulfur dioxide, SO2, is used in wine as an antioxidant, slowing the oxidation of ethanol
to ethanoic acid. To determine the SO2 content of a wine sample, sodium hydroxide
and sulfuric acid were added to ensure that all sulfur was present as SO2. A 20.00 mL
aliquot was then titrated against standardised iodine solution, using starch indicator.
Reaction occurred according to the equation:
SO2(aq) + 2H2O(l) + 12(aq) → 4H+ (aq) + 21- (aq) + SO42- (aq)
The end point was reached with 15.62 mL of 0.00501 M iodine solution. The
concentration (in M) of SO2 in the wine was ...
A)6.2 x 10-3
B)7.8 x 10-3
C)3.9 x 10-3
D)5.0 x 10-3
The concentration (in M) of SO₂ in the wine : c. 3.9 x 10⁻³
Further explanationGiven
Reaction
SO2(aq) + 2H2O(l) + I2(aq) → 4H+ (aq) + 21- (aq) + SO42- (aq)
Required
The concentration (in M) of SO2
Solution
Titration ⇒ mol SO₂ = mol iodine(I)
mol iodine :
=15.62 ml x 0.00501 M
=0.078256 mlmol
From equation, mol ratio of of SO₂ : I₂ = 1 : 1, so mol SO₂=0.078256
The concentration of SO₂(in 20 ml sample) :
M = n/V
M = 0.078256 mlmol/20 ml
M = 0.0039128
M = 3.9 x 10⁻³
Who first purpose the theory of continental drift
Answer:
The theory of continental drift is most associated with the scientist Alfred Wegener. In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting” across the Earth, sometimes plowing through oceans and into each other.
Explanation:
PLEASE MARK ME AS BRAINLIEST
Answer:
The scientist Alfred Wegener.
Explanation:
If the pressure, volume, and temperature of a gas are known, which can most likely be found by using the ideal gas law?
a.the molar amount of the gas
b.the partial pressure of the gas
c.the standard temperature and pressure
d.the molar mass
Answer:
the moral amount of the gas.
.What type of energy includes both kinetic and potential energy?
Answer:
mechanical energy
Explanation:
__HgO __Hg + __O2 what is the reaction
Answer:
2HgO <---- 2Hg + O2
Explanation:
What is the mass of .89 moles of lithium metal, used in laptop batteries?
The mass of lithium metal that is used in lithium batteries is 6.17 grams, this can be calculated by using number of moles formula.
Number of moles:It is defined as the ratio between mass and molar mass.
It is given by:
Number of moles = mass / Molar mass
What information do we have?
Number of moles= 0.89 moles
Molar mass of Lithium metal= 6.941 g/mol
To find:
Mass of Lithium metal=?
On substituting the values
n= m/M
0.89 = m/ 6.941
m= 0.89*6.941
m= 6.177 grams
Thus, the mass of lithium metal is 6.177 grams.
Find more information about Number of moles here:
brainly.com/question/13314627
Suppose your metal sample is hammered into the shape of a thin coin with a diameter of 8.62 cm. Determine the thickness (in mm) of this metal sheet. Use the measured metal mass and true denisty of your metal for this calculation.
measured metal mass: 83.956 g
true density: 8.90 g/cm3
Answer:
The thickness of the metal sheet is 0.162 centimeters.
Explanation:
If mass within the coin is uniformly distributed, then the density ([tex]\rho[/tex]), measured in grams per cubic centimeter, can be represented by the following formula:
[tex]\rho = \frac{m}{\frac{\pi}{4}\cdot D^{2}\cdot z }[/tex] (1)
Where:
[tex]m[/tex] - Mass, measured in grams.
[tex]D[/tex] - Diameter, measured in centimeters.
[tex]z[/tex] - Thickness, measured in centimeters.
If we know that [tex]m = 83.956\,g[/tex], [tex]D = 8.62\,cm[/tex] and [tex]\rho = 8.90\,\frac{g}{cm^{3}}[/tex], then the thickness of the coin is:
[tex]z = \frac{m}{\frac{\pi}{4}\cdot D^{2}\cdot \rho }[/tex]
[tex]z = \frac{83.956\,g}{\frac{\pi}{4}\cdot (8.62\,cm)^{2}\cdot \left(8.90\,\frac{g}{cm^{3}} \right) }[/tex]
[tex]z = 0.162\,cm[/tex]
The thickness of the metal sheet is 0.162 centimeters.
Why does a circuit need to connect the negative to the positive sides of a battery?
Analysis of an unknown substance indicates that it is a brittle solid. It acts as an electrical insulator (does not conduct) as a solid but conducts electricity when melted. Which of the following substances would have these characteristics?
a. HCl
b. Al
c. KBr
d. SiF4
e. I2
Answer:
KBr
Explanation:
A metal has a very high melting point. Aluminum is a metal.
Ionic solids do not conduct electricity in the solid state. However, when the solids are melted, they conduct electricity.
KBr is an ionic substance, it can only conduct electricity in molten form because the ions are locked up in the solid.
What is true about atomic radius trends on the periodic table?
A. Atomic radius decreases along periods and decreases down groups.
B. Atomic radius decreases along periods and increases down groups.
C. Atomic radius increases along periods and decreases down groups.
D. Atomic radius increases along periods and increases down groups.
It is not b
Answer:
D
Explanation:
Just took the test, Hope this helps!
Answer:
B. Atomic radius decreases along periods and increases down groups.
Explanation:
It decreases in period because of addition of proton effective nuclear charge increase and atomic radius decreases.
Atomic radius increases in group because of addition of shells
6. What is the equilibrium constant for the following reaction?
C+02 = CO2
Given
Reaction
C+02 = CO2
Required
The equilibrium constant
Solution
The equilibrium constant is the ratio of concentration or pressure between the product and the reactant with each reaction coefficient raised
The equilibrium constant is based on the concentration (Kc) in a reaction
pA + qB -----> mC + nD
[tex]\large {\boxed {\bold {Kc ~ = ~ \frac {[C] ^ m [D] ^ n} {[A] ^ p [B] ^ q}}}}[/tex]
So for the reaction :
C+O₂ ⇔ CO₂
[tex]\tt Kc=\dfrac{[CO_2]}{[C][O_2]}[/tex]
How far in advance is weather forecasting most accurate?
one week
one month
multiple years
multiple months
Answer:
One week.
Explanation:
I would think one month because on weather websites you can see a month of weather. But the closer the day your looking at the prediction will be more accurate.
The most accurate range of data for weather forecasting is: A. one week.
What is weather?Weather can be defined as the average atmospheric conditions of a particular area (region) over a short period of time.
The elements of weather.Some examples of the elements of weather include the following:
PrecipitationAtmospheric pressureRelative humidityWind speedTemperatureIn meteorology, the most common forecasted element of weather is temperature (degree of hotness or coldness) and it usually done a weekly basis such as one week.
Read more on weather here: https://brainly.com/question/24730207
Dribbling a basketball harder into the floor makes it bounce higher is an example of what newton's law?
What is the frequency of a photon that has a wavelength of 6.58 x 10-8m?
Answer:
6 x 10 (power to the 15) H2
Answer:
i dont know the answer but you could search up photon calculator, hope this helps (im very sorry i couldnt help but i havent learned about that yet, im in 9th grade)
What type of crust is colliding?
Japan Trench
Eurasian Plate
Pacific Plate
Answer: The Eurasian Plate or both the Eurasian and Pacific Plate.
Explanation:
An idea based on observations with no experimental evidence is a:
How many electrons can be described by the following quantum numbers: n=2, 1=-1, m-1.
Answer:
6 electrons
Explanation:
The principal quantum number n; describes the energy level and here, it is 2.
The azimuthal or secondary quantum number l is given as 1, we are describing the p-orbital
The magnetic quantum number is -1, and we have 3 sub-orbitals here:
It is a 2p-suborbital
So; in each sub orbital we have 2 electrons
The number of electrons that can be described here = 2 x 3 = 6 electrons.
number the steps for balancing equations:
O Use coefficients to increase the atoms on each side.
O Check to make sure you have the same number of each type of atom on each side.
O Count the atoms on each side.
O Identify the atoms on each side.
Explanation:
In balancing chemical equations, the law of conservation of matter must be strictly obeyed.
By the virtue of this, the following steps are usually taken:
First identify the atoms on each side of the expression. This to know the number of species to balance. Then count the atoms on each side. Then using appropriate number as the coefficients, increase the atom on each side until there are equal numbers on both sides. Finally, check to make sure we have the same number of each type of atom on each side.Answer:
the answer would be 3 4 2 1
Explanation:
A digital camera stores images as
A.
digital information.
B.
light.
C.
analog images.
D.
all of these
Answer: A) digital information.
Data is stored in binary fashion as 1s and 0s. If you string enough of them together, you can convey many forms of messages. If you send a message to some kind of storage medium (such as a hard drive or flash drive), then you can retrieve that message at a later date. In effect, you're sending a message to yourself, more or less. By "message", I mean the information about each pixel color that forms the entire image.
In contrast, an analog camera or film camera stores images on film that is to be processed at a later time. Though something like polaroid cameras develop the image fairly quickly without need of a darkroom. Both analog and digital methods involve the use of light to capture the image, and this is true about our eyes needing light as well just to see in general. However, light itself isn't used as a storage method.