Автор - Sanika170705

СРОЧНО! 50 БАЛЛОВ!!!!!!!!!
7 и 8 пожалуйста ​

Ответ

Автор - фтвфкещт20

№7

1) CaO+H2O = Ca(OH)2

2) Ca(OH)2+CO2 = CaCO3+H2O

3) K2O + 2 HCl = 2 KCl +  H2O

4) Li2O+2 HNO3 = 2 LiNO3+H2O

5) SO2+ 2 NaOH = Na2SO3+H2O

6) SO3 + 2 KOH = K2SO4+H2O

№8

H2O->O2->SO2->H2SO3

2 H2O = 2 H2+O2

S+O2 = SO2

SO2+H2O = H2SO3

H2O->O2->K2O->KOH

2 H2O = 2 H2+O2

2 K+O2 = 2 K2O

K2O+H2O = 2 KOH

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