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Ainat [17]
3 years ago
7

For a reaction to occur, energy must be _____ to break chemical bonds.

Chemistry
2 answers:
hichkok12 [17]3 years ago
7 0

Answer: Option (C) is the correct answer.

Explanation:

When energy is absorbed in a chemical reaction then chemical bonds tend to break and cool the surroundings. This type of reaction is known as endothermic reaction.

For example, melting of ice cubes is an endothermic reaction.

Whereas when energy is released in a chemical reaction then it is because atoms come close to each other. This type of reaction is known as exothermic reaction.

Therefore, we can conclude that out of the given options, for a reaction to occur, energy must be absorbed to break chemical bonds.

lapo4ka [179]3 years ago
6 0

Answer: The correct answer is absorbed.

Explanation:

Bond formation is a type of exothermic process. In these reactions when two atoms come close to each other, energy is released in this process.

On the other hand, in the breaking of bond, energy is required because the atoms are to be separated from each other. This is a type of endothermic process. So, the energy must be absorbed.

Hence, the correct answer is absorbed.

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3 years ago
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Answer:

Hey,

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Explanation:

I hope this helps, sorry if not. Have a great day!

4 0
3 years ago
Read 2 more answers
Difference between flammable and combustible
Nikitich [7]
<h3>flammable liquids will catch on fire and burn easily at normal working temperatures. Combustible liquids have the ability to burn at temperatures that are usually above working temperatures.</h3>

<em>Hope this helped! :)</em>

8 0
3 years ago
What is the percentage of water in the hydrate CoCl2 • 6H2O? Show your work.
Lelu [443]
Hello!

First you have to find the molar mass of the molecules

C = 12
O = 16
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6H2O = 108

Add them up to find the total molar mass

12 + 16 + 71 + 108 = 207g/mol

Divide the amount of water by the total molar mass

108 / 207 = 0.5217

Convert this to a decimal

0.5217 = 52.17%

The answer is 52.17%

Hope this helps!
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