Question

In which of the following reaction is there only one reactant ? *
1 point
Combination reaction
Decomposition reaction
Displacement reaction
Precipitation reaction
​

Answer 1

Answer:

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☞Displacement reaction :

A single-displacement reaction, also known as a single-replacement reaction, is a reaction by which one

(or more) element(s) replaces an/other element(s) in a compound. It can be represented generally as:

A+B−C→A−C+B

All simple metal with acid reactions are single displacement reactions. For example, the reaction

between magnesium, Mg, and hydrochloric acid, HCl, forms magnesium chloride, MgCl

2

, and hydrogen,

H

2

.

Answer 2

Answer:

Decomposition reaction