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hram777 [196]
3 years ago
15

What is chemical weathering?

Chemistry
1 answer:
RSB [31]3 years ago
4 0

Answer:

it's when a rock or some type of building material starts to wither because of a chemical reaction

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Heat energy from the sun heats water on earth’s surface. The heated water evaporates and the water vapor rises into the air. As
DaniilM [7]

Answer:

A - The water cycle

Explanation:

Condensation is the process by which water vapor in the air is changed into liquid water. These clouds may produce precipitation, which is the primary route for water to return to the Earth's surface within the water cycle. Condensation is the opposite of evaporation.

3 0
3 years ago
Chem help
garik1379 [7]
The answers are:
1. B. Protons
2. B. Nuclide
3. D. Even
4. B.<span>Isotopes are two or more atoms with the same atomic number, but a different mass number.

Isotopes are basically identical elements with different numbers of neutrons. Ideally, the number of protons and neutrons should be the same, but there are instances where neutrons are greater, making the isotopes more unstable. The force that holds together the nucleus of atoms is know as the strong force, and it overcomes the repulsive forces between protons. </span>
6 0
3 years ago
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Fill in the coefficients that will balance the following reaction: <br> Zn +Fe(NO3)2---ZnNO3+Fe
kakasveta [241]
In order to balance reactions, the number of each element must be the same on the left and right side. If I have 3 of element X on one side, I must have 3 of element X on the other side. That being said:

Zn + Fe(NO3)2 —> ZnNO3 + Fe

I have two NO3 groups on the left, so I will add a coefficient of 2 in front of the compound which has an NO3 group on the right side.

Zn + Fe(NO3)2 —> 2ZnNO3 + Fe

Since I now have 2 Zn’s on the right, and only 1 on the left, I will add a coefficient of 2 in front of Zn on the left.

2Zn + Fe(NO3)2 —> 2ZnNO3 + Fe

Lets check:
Zn: 2 right, 2 left (correct)
Fe: 1 right, 1 left (correct)
NO3 groups: 2 right, 2 left

We have successfully balanced the equation. :)
7 0
3 years ago
When graphing acceleration, what variable is on the y-axis​
emmasim [6.3K]

Answer:

Time

Explanation:

3 0
2 years ago
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Which statement below is true?
kykrilka [37]

Answer:

a) At a given temperature, C₂H₆ has a higher vapor pressure than C₄H₁₀.

Explanation:

<em>Which statement below is true? </em>

<em>a) At a given temperature, C₂H₆ has a higher vapor pressure than C₄H₁₀.  </em>TRUE. C₂H₆ has a lower molar mass than C₄H₁₀ and a higher vapor pressure at most temperatures.

<em>b) The strongest intermolecular attractive forces present in liquid CCl₄ are dipole-dipole forces.</em>  FALSE. CCl₄ is nonpolar, so the strongest intermolecular forces are dispersion forces.

<em>c) HCl has a higher boiling point than LiCl.</em>  FALSE. LiCl (ionic compound) has a higher boiling point than HCl (covalent compound).

<em>d) H₂O has a greater polarizability than H₂Se.</em>  FALSE. Se has a larger atomic radius than O which is why H₂Se has a greater polarizability than H₂O.

<em>e) In general, the stronger the intermolecular attractive forces, the lower the ∆Hºvap.</em> FALSE. In general, the stronger the intermolecular attractive forces, the higher the ∆Hºvap.

7 0
3 years ago
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