July 2022 1 20 Report
1. Напишите химическое уравнение реакции соединения:
Na2O + H2O→
SO3 + H2O→
2. Напишите химическое уравнение реакции разложения:
СаСО3 →
3. Напишите химическое уравнение реакции замещения:
Hg(NO3)2 + Pb →
4. Напишите химическое уравнение реакции обмена:
СаО + Н3РО4 →
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