Question

31. Write and example of each type of chemical reaction with its symbolic equation. You can use generic or actual
equations.
a. single-replacement

b. decomposition

C. synthesis

d. double-replacemen
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Answer 1

Answer:

single replacement: A + BC => B+ AC

Decomposition: AB => A+B

Synthesis: A + B => AB

Double replacement:

AB + CD => CB + AD

Explanation: Example reactions:

Single replacement:

2K + 2 H2O => 2 KOH + H2

Decomposition:

2Ag2O => 4 Ag + O2

Synthesis:

4 P + 5 O2 => 2 P2O5

Double replacement:

2NaOH + MgCl2 => Mg(OH)2 +2 NaCl

Answer 2

Answer:

Explanation:

A. Single-Replacement =

Zn + CuCl2 -----> ZnCl2 +

Cu

B. Decomposition =

CaCO3 -----> CaO + CO2

C. Synthesis =

2H2 + O2 ------> 2H2O

D. Double Replacement =

BaCl2 + MgSO4 ------>

BaSO4 + MgCl2