Question

give two examples to prove that heat energy brings about a chemical change
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Answer 1

Answer:

Chemical reactionA thermite reaction, which produces molten iron.

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Answer 2

Answer:

1. The explosion of fireworks is an example of chemical change.
2. Chemical reaction is a thermite reaction, which produces molten iron.
3. The decomposition of water into hydrogen and oxygenWhen water is heated to over 2000 degrees Celsius, a small fraction will decompose into hydrogen and oxygen. Significant heat energy is needed for thisreaction to proceed

Explanation:

These examples proves that heat energy brings about a chemical change