Question

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7 question

Answer 1

Combination reaction: When two elements or compounds react chemically to form a single new compound, then the chemical reaction is called a chemical combination reaction.
Carbon + Oxygen = carbon dioxide + heat

Decombination Reaction : When a chemical compound decompose on heating or absorbing some kina of energy, so as to form two or more substances (elements or compounds), thdn the chemical reaction taking place is called a chemical Decombination reaction.
2NaCl ➡️2Na + 2Cl