Carbon C
$C$ $+$ $O_2$ $\longrightarrow$ $CO_2$ Carbon and oxygen give carbon dioxide $CO_2$ $+$ $H_2O$ $\longrightarrow$ $H_2CO_3$ Carbon dioxide and water give carbonic acid
Sulfur $S_8$
$S_8$ $+$ $8O_2$ $\longrightarrow$ $8SO_2$ Sulfur and oxygen give sulfur dioxide $SO_2$ $+$ $H_2O$ $\longrightarrow$ $H_2SO_3$ Sulfur dioxide and water give sulfurous acid
White phosphorus $P_4$
$P_4$ $+$ $5O_2$ $\longrightarrow$ $P_4O_{10}$ White phosphorus and oxygen give phosphorus(V) oxide $P_4O_{10}$ $+$ $6H_2O$ $\longrightarrow$ $4H_3PO_4$ Phosphorus(V) oxide and water give phosphoric acid