Na2SO4 + BaCl2 = BaSO4 + 2NaCl
2Na(+) + SO4(-2) + Ba(+2) + 2Cl(-) = BaSO4 + 2Na(+) + 2Cl(-) (11)
Ba(+2) + SO4(-2) = BaSO4 (3)
Ответ :11 и 3
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Na2SO4 + BaCl2 = BaSO4 + 2NaCl
2Na(+) + SO4(-2) + Ba(+2) + 2Cl(-) = BaSO4 + 2Na(+) + 2Cl(-) (11)
Ba(+2) + SO4(-2) = BaSO4 (3)
Ответ :11 и 3