Question

Give an example of a reation which is both an
exthermic and combination reaction
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Answer 1

Answer:

magnesium + oxygen gives rise to magnesium oxide

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Answer 2

Answer:

CaO + H2O -----> Ca(OH)2 + heat

i.e., calcium oxide(quick lime) reacts with water to form calcium hydroxide(slaked lime) and heat.

so, you can see that two reactants (calcium oxide and water) react together to form a single product (calcium hydroxide).

Also, in the end it produces a lot of heat.

thus, this reaction is both exothermic and combination reaction.

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Explanation: