Ответ по предмету Химия: А5. Какое уравнение соответствует реакции обмена? 1) BaCl2 + Na2CO3 → BaCO3 + 2NaCl 2) 2Al + 3H2SO4 → Al2(SO4)3 + 3H2 3) H2O + K2O → 2KOH 4) Fe(OH)2 → FeO + H2O

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А5. Какое уравнение соответствует реакции обмена?1) BaCl2 + Na2CO3 → BaCO3 + 2NaCl2) 2Al + 3H2SO4 → Al2(SO4)3 + 3H23) H2O + K2O → 2KOH4) Fe(OH)2 → FeO + H2O

Ответы

А5. Какое уравнение
соответствует реакции обмена?

1) BaCl2
+ Na2CO3
→ BaCO3
+ 2NaCl
2) 2Al + 3H2SO4
→ Al2(SO4)3
+ 3H2
3) H2O
+ K2O
→ 2KOH
4) Fe(OH)2
→ FeO + H2O