Question 32

Question

Match the following equations to the type of reaction.

Column A
1.
Synthesis:
Synthesis
2.
Single replacement:
Single replacement
3.
Combustion:
Combustion
4.
Double displacement:
Double displacement
5.
Decomposition:
Decomposition
Column B
a.
Na + Cl → NaCl

b.
2 H2O → 2 H2 + O2

c.
C3H8 + 5 O2 → 3 CO2 + 4 H2O

d.
2 NaCl + Br2 → 2 NaBr2 + Cl2

e.
MgBr2 + 2 NaCl → MgCl2 + 2 NaBr

Answer 1

Here are the matches between the equations in Column A and the corresponding types of reactions in Column B:

1. Synthesis: a. Na + Cl → NaCl
   (Synthesis reactions involve two or more reactants combining to form a single product.)

2. Single replacement: d. 2 NaCl + Br2 → 2 NaBr + Cl2
   (Single replacement reactions involve one element replacing another in a compound.)

3. Combustion: c. C3H8 + 5 O2 → 3 CO2 + 4 H2O
   (Combustion reactions involve a substance combining with oxygen, resulting in energy release, typically producing CO2 and H2O.)

4. Double displacement: e. MgBr2 + 2 NaCl → MgCl2 + 2 NaBr
   (Double displacement reactions involve the exchange of ions between two compounds to form new compounds.)

5. Decomposition: b. 2 H2O → 2 H2 + O2
   (Decomposition reactions involve a single compound breaking down into two or more products.)

So, the final matches are: 1-a, 2-d, 3-c, 4-e, 5-b.