2K+2HCl=2KCl+H2
4K+O2=2K2O
K+NaOH=KOH+Na
2K+ZnCl2=2KCl+Zn
2K+Cl2=2KCl
4K+2H2O=4KOH
2K+2HNO3=2KNO3+H2
2K+2HCl=2KCl+H2
4K+O2=2K2O
K+NaOH=KOH+Na
2K+ZnCl2=2KCl+Zn
2K+Cl2=2KCl
4K+2H2O=4KOH
2K+2HNO3=2KNO3+H2