Предмет: Химия, автор: Аноним

помогите пожалуйста
​

Приложения:
charaifelix2007: это два разных вещества или одно?

Ответы

Автор ответа: temirgaliev367
3

Ответ:

H2SO4=2×1+32+4×16=98 г/моль

H3PO4=3×1+31+4×16=98 г/моль

Можно лучший ответ

temirgaliev367: ну там должно выйти "сделать лучший ответ"
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1. This picture … at the beginning of the century. A painted B had painted C was painted

2. Jill is very honest. I … she cheated in the test. A not believe B don’t believe C am not believing

3. Look at Martha’s expression. She … screaming any minute now! A is starting B started C will start

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