8-44. 2K+I2=2KI
K+He≠
2K+2H2O=2KOH+H2↑
2K+S=K2S
2K+H2=2KH
Li2CO3+K≠
8-45. a) 2K+2H2O=2KOH+H2↑
KOH+HNO3=KNO3+H2O
2KNO3+H2SO4(k)=K2SO4+2HNO3↑
K2SO4+BaCl2=BaSO4↓+2KCl
2KCl(расплав)=2K+Cl2
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8-44. 2K+I2=2KI
K+He≠
2K+2H2O=2KOH+H2↑
2K+S=K2S
2K+H2=2KH
Li2CO3+K≠
8-45. a) 2K+2H2O=2KOH+H2↑
KOH+HNO3=KNO3+H2O
2KNO3+H2SO4(k)=K2SO4+2HNO3↑
K2SO4+BaCl2=BaSO4↓+2KCl
2KCl(расплав)=2K+Cl2