NaOH+HCl=NaCl+H2O
2KOH+H2SO4=K2SO4+2H2O
H2S+2NaOH=Na2S+2H2O
FeSO4+2LiOH=Li2SO4+Fe(OH)2
H3PO4+3RbOH=Rb3PO4+3H2O
<span><span>2<span>N2</span></span>+<span>5<span>O2</span></span>→ <span>2<span>N2O5
</span></span></span><span><span>N2O5</span>+<span>H2O</span> → <span>2<span>HNO3 </span></span></span>
<span><span>6<span>HNO3</span></span>+<span>Al2O3</span> → <span>2<span>Al<span>(NO3)</span>3</span></span>+<span>3<span>H2O
</span></span></span><span><span>Al<span>(NO3)</span>3</span>+<span>3<span>H2O</span></span> → <span>3<span>HNO3</span></span>+<span>Al<span>(OH)</span><span>3</span></span></span>