Chemistrymedium · Past Paper
An example of a reaction where a solid and a gas react to form another solid is:
A$2Mg + O_2 \rightarrow 2MgO$
B$Zn + H_2SO_4 \rightarrow ZnSO_4 + H_2$
C$N_2 + 3H_2 \rightarrow 2NH_3$
D$HCl + NaOH \rightarrow NaCl + H_2O$
✓ Correct Answer: A — $2Mg + O_2 \rightarrow 2MgO$
Magnesium (solid) reacts with Oxygen (gas) to form Magnesium Oxide (solid).
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