Chemistry - C2 4.7 - Exothermic and endothermic reactions

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What do we call a reaction that releases energy to its surroundings?

Exothermic

What do we call a reaction that absorbs energy from its surroundings?

Endothermic

Give two examples of exothermic reactions.

Burning methane (in natural gas)
Respiration 

Give an example of an endothermic reaction

Thermal decomposition e.g. thermal decomposition of calcium carbonate takes in a lot of energy from the surroundings.

Chemical reactions involve energy changes. When…

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