Science, asked by apmithilesh20, 9 months ago

Q3. Give two examples of
a) Compounds formed by absorption of heat
b) Compounds formed by evolution of heat
Q4. List any four unique

Answers

Answered by pranjalkhandelwal64

Answer:

Formation of water from molecular hydrogen and oxygen and theformation of a metal oxide such as calcium oxide (CaO) from calcium metal and oxygen gas are examples. ... 2 H2O(g) → 2 H2(g) + O2(g) Generally,evolution of heat in a reaction favours the conversion of reactants to products.

Answered by aaravsbhagwat

Answer:

a)Water,ice.

b)graphite.

Explanation:

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