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anyanavicka [17]
3 years ago
12

How does a combination reaction differ from a decomposition reaction

Chemistry
1 answer:
OverLord2011 [107]3 years ago
5 0

Answer:

Explanation:

Combination Reaction: is a reaction that occurs when two or more reactants combine to form a single new products. The reactants can either be Elements or Compounds. It does not require heat during the reaction.

A + B ---------> C

C (s) + O2 (g) ----------> CO2 (g)

CaO (s) + H2O (l) ---------> Ca(OH)2 (s)

In this reaction, energy is released.

Decomposition Reaction: is a reaction that occurs when a a single reactant is broken down to form two or more products. Application of heat is usually required in this type of reaction.

       Δ

AB --------->   C + D

                   Δ

CaCO3 (s) --------> CaO (s)  + CO2 (g)

In this reaction, energy is absorbed.

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