Question

Classify the following reactions as combination, decomposition, displacement, precipitation and neutralization:
(a) 4Na + 2O2=Na2O
(b) HCl + NaOH =NaCl + H2O
(c) Fe + CuSO4= FeSO4 + Cu
(d) CaCO3 = CaO + CO2
(e) BaCl2 + Na2SO4= BaSO4 + 2NaCl
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Answer 1

Answer:

combination, decomposition, displacement, precipitation and neutralization:

Answer 2

Explanation:

1. combination as they both combine to form 1 cmpd.

2. double displacement as na displaces h while h also takes place of na

3. displacement

4. decomposition

5. double displacement