2K+2HCl==2KCl+H2↑
3K+4HNO3(稀)==3KNO3+NO↑+2H2O
2Na+2HCl==2NaCl+H2↑
3Na+4HNO3(稀)==3NaNO3+NO↑+2H2O
Ca+2HCl==CaCl2+H2↑
3Ca+8HNO3(稀)==3Ca(NO3)2+2NO↑+4H2O
2K+2HCl==2KCl+H2↑
3K+4HNO3(稀)==3KNO3+NO↑+2H2O
2Na+2HCl==2NaCl+H2↑
3Na+4HNO3(稀)==3NaNO3+NO↑+2H2O
Ca+2HCl==CaCl2+H2↑
3Ca+8HNO3(稀)==3Ca(NO3)2+2NO↑+4H2O