Предмет: Химия, автор: katuha00

Помогите пожалуйста дополнить уравнения(и расставьте коэффициенты) и объясните что происходит при реакции(например: нет реакции,белый осадок,выделение газа и т.п)
Ca(OH)2+Na2CO3=
Na2SO4+Na2CO3=
BaCl2+Na2CO3=
HNO3+Na2CO3=
NaOH+Na2CO3=

Ответы

Автор ответа: тайная

Ca(OH)2+Na2CO3= CaCO3 (осадок белого цвета) + 2NaOH
Na2SO4+Na2CO3= \\\ нет изменений
BaCl2+Na2CO3= BaCO3(осадок белого цвета) + 2NaCl
2HNO3+Na2CO3= 2NaNO3 + H2O + CO2 (бесцв. газ)
NaOH+Na2CO3=\\\ нет изменений

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