Предмет: Химия, автор: 77Mary123

!!!!!!!!!!!!!!!!!!!!!Допоможіть!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Здійснити перетворення :
CACO3- CO2- H2CO3- NAHCO3- Na2CO3

Ответы

Автор ответа: lizagrugorieva163412
2

Ответ:

2CaCO3 → 3CO2 + Ca

2H2 + 3CO2 → 2H2CO3

Na2CO3 + H2CO3 → 2NaHCO3

2NaHCO3 → Na2CO3 + H2O + CO2

Объяснение:

Автор ответа: kolomycevan
1

Відповідь: CаCO3- CO2- H2CO3- NаHCO3- Na2CO3

1)CаCO3→t°→  CO2↑+CaO

2)CO2+H2O= H2CO3

3)H2O+CO2+Na2CO3= 2NаHCO3

4)2NаHCO3= Na2CO3+H2O+CO2↑

Пояснення:          

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