Question

СРОЧНО ПОМОГИТЕ 7 .9 И 11 ЗАДАНИЕ

Answer 1

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Answer 2

№7
1) CuSO4+2LiOH=Cu(OH)2+Li2SO4
2) SO2+H2O=H2SO3
3) HNO3+KOH=KNO3+H2O
4) 2HCl+Cu=CuCl2+ H2
№9
1) Сa+2HCl=CaCl2+H2
2)Fe2O3+6HCl=2FeCl3+3H2O
3)2Ag+2HCl=2AgCl+H2
4) AgNO3+HCl=AgCl+HNO3
5) KOH+HCl=KCl+H2O
№11
H2SO4
w%(S)=32/98=0,326=33%