СРОЧНО!1!!! 1) CaCl2+ K2CO3 ® а) 2KCl + CO2 + H2O

2) SO3 + NaOH ® б) Na2SO4 + 2H2O

3) NaOH + H2SO4 ® в) Na2SO3 + 2H2O

4) K2CO3 + HCl ® г) CaCO3 + 2KCl
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