Chemistry, asked by lisithakponnath, 16 hours ago

please answer fast

• if the answer is wrong l will report your answer
• if it is correct I will mark your answer as brilliant

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Answered by aniruddhkumar9415

1

1.

CH4 + O2 heat energy is released
CaO + H2O heat energy is released

2.

nitrogen + oxygen. exothermic
nitrogen + hydrogen. exothermic

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