Question

# Identify the combination reactions in the following:

A
NH3+HClNH4Cl
B
NaCl+KOHNaOH+KCl
C
2CO+O22CO2
D
Cu(OH)2heatCuO+H2O

Solution

## The correct options are A $$NH_3+HCl\rightarrow NH_4Cl$$ B $$2CO+O_2\rightarrow 2CO_2$$Formation of ammonium chloride and carbon dioxide is a combination reaction.  A combination reaction is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product).Chemistry

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