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meriva
2 years ago
10

What is helpful about UV rays?

Chemistry
2 answers:
grigory [225]2 years ago
8 0
UV rays can be found In the sun and in tanning beds.
UV rays can cause cancer (skin) if proper skin health is not happening (sunscreen)

I hope this helps you!
nignag [31]2 years ago
8 0
UV rays (sunlight) are used in plants during photosynthesis, and helps generate oxygen for us using carbon dioxide that we produce

Humans: 
intake: oxygen
'waste': carbon dioxide

Plants:
intake: carbon dioxide
'waste": oxygen
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Which of these pairs of elements have the same number of valence electrons?​
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8 0
2 years ago
Pls I need help! I need answer and explanation.
gizmo_the_mogwai [7]
Answer: 2LiBr(aq) + F2(g) —> 2LiF + Br2

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8 0
3 years ago
Exhibits the highest intermolecular<br> forces of the states of matter.
disa [49]

Answer:

Solid

Explanation:

In solid there are strong intermolecular forces present as compared to liquid and gas. This is why solid are in more packed form as compared to liquid and gas. In liquid and gas intermolecular forces are week that's why molecules are away from each other and occupy more space.

Properties of gases:

Molecule of gases randomly move everywhere and occupy all available space.

Gases don't have definite volume and shape and take the shape and volume of container in which it present.

Their densities are very low as compared to the liquid and solids.

Gas molecules are at long distance from each other therefore by applying pressure gases can be compressed.

The very weak inter molecular forces are present between gas molecules.

Properties of Liquid:

Liquid have definite volume but don't have definite shape.

Their densities are high as compared to the gases but low as compared to the solids.

In liquid, molecules are close to each other and have greater inter molecular forces as compared to the gas molecules.

Properties of solids:

Solids have definite volume and shape.

In solids molecules are tightly pack and very close to each other.

Their melting and boiling point are every high.

The densities of solids are also very high as compared to the liquid and gas.

There are very strong inter molecular forces are present between solid molecules.

7 0
2 years ago
Which of the following statements is true?
eduard

Answer:

Lines of latitude are used to divide Earth into 24 time zones

Explanation:

5 0
3 years ago
The pH of a solution changes from 3.00 to 6.00. By what factor does the [H3O+] change?
Naya [18.7K]
:  E) 1000 = 10^3 
6-3 = 3 ==> change is 10^3
HOPE I COULD HELP
4 0
3 years ago
Read 2 more answers
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