Срочно!!!!!!!!!!!!!!!!!!!!!!!

Question

Срочно!!!!!!!!!!!!!!!!!!!!!!!

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Answer 1

а) Ca->CaO->Ca(OH)2->CaSO3

2 Ca+O2 = 2 CaO

CaO+H2O = Ca(OH)2

Ca(OH)2+H2SO3 = CaSO3+2 H2O

б) S->SO2->H2SO3->CaSO3

S+O2 = SO2↑

SO2↑+H2O = H2SO3

Ca(OH)2+ H2SO3 = CaSO3 + 2 H2O