Question

Support with example that compound formation takes place with energy changes,using water formation and iron sulphide formation.

Answer 1

Explanation:

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Answer 2

Answer:

The formation of a compound involves the absorption or evolution of energy such as heat, light or electricity.

For example - Carbon reacts with oxygen forming CO  

2

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 and liberates heat.

Photosynthesis is an endothermic reaction where carbon dioxide CO  

2

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, water (H  

2

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O) absorb heat and sunlight, form glucose and oxygen.

Explanation:

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