Which equation has both a liquid and a gas as products?
A$2 HgO ( s ) \rightarrow 2 Hg ( l )+ O _2(g)$
B$2 Mg ( s )+ O _2(g) \rightarrow 2 MgO ( s )$
C$2 KClO _3(s) \rightarrow 2 KCl ( s )+3 O _2(g)$
D$Mg ( s )+2 HCl ( aq ) \rightarrow H _2(g)+ MgCl _2( aq )$
A$2 HgO ( s ) \rightarrow 2 Hg ( l )+ O _2(g)$
B$2 Mg ( s )+ O _2(g) \rightarrow 2 MgO ( s )$
C$2 KClO _3(s) \rightarrow 2 KCl ( s )+3 O _2(g)$
D$Mg ( s )+2 HCl ( aq ) \rightarrow H _2(g)+ MgCl _2( aq )$