Предмет: Химия, автор: mary181818

1.Оксид натрия реагирует с каждым из двух веществ:
а) водой и оксидом кальция
б) кислородом и водородом
в) сульфатом калия и гидроксид натрия
г) фосфорной кислотой и оксидом серы(IV)

2.Карбонат калия реагирует с
а) оксид натрия
б) магнием
в) азотной кислотой
г) водородом

3.В цепочке превращений Na2O --> X --> Na2SO4 веществом Х является
а) NaOH
б) Na2CO3
в) Na
г) H2SO4

Ответы

Автор ответа: тайная
23
1.Оксид натрия реагирует с каждым из двух веществ:г) фосфорной кислотой и оксидом серы(IV)

2.Карбонат калия реагирует с   в) азотной кислотой

3.В цепочке превращений Na2O --> X --> Na2SO4 веществом Х является
а) NaOH

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