Question

Most reactions can be classified as one or more of the following: (1) combination reactions (2) decomposition reactions (3) displacement reactions (4) metathesis reactions (5) redox reactions (6) acid-base neutralization reactions

Classify the following reactions by placing the appropriate number in the blank space to the left of each equation. If a reaction fits into more than one class, place more than one number in the blank.

_____PCl3 + Cl2 ——> PCl5

_____NaOH + HCl ——> NaCl + H2O

_____2 Cu(NO3)2 ——> 2 CuO + 4 NO2 + O2

_____2 Na + HgBr2 ——> Hg + 2 NaBr

_____Hg + 4 HNO3 ——> Hg(NO3)2 + 2 NO2 + 2 H2O

_____AgNO3 + K3PO4 ——> Ag3PO4 + 3 KNO3

Answer 1

In combination , simpler molecules combine to form complex molecule.

In decomposition reaction , the molecule decomposes to give simpler molecules.

In displacement reaction , more reactive element replaces a less reactive one from the compound.

In metathesis reaction , th two compounds exchange their ions.

Redox reactions are the ones that have both reduction and oxidation reactions.

Acid base neutralization reactions are the ones that combines acid and base to form salt and water.

So here the reactions are :

1

6

2

3

5

4