В10 г сплава меди с цинком обработали соляной кислотой ( объем раствора 1,5 л, концентрация 0,02 при - id217523620230225 от асланбек13 25.02.2023 09:30

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Химия: В10 г сплава меди с цинком обработали соляной кислотой ( объем раствора 1,5 л, концентрация 0,02 при этом выделилось 570мл водорода, измеренных при температуре 27 градусов и давлении 1 атм. определить массовую долю цинка в сплаве.

асланбек13 · Accepted Answer

1. I played football yesterday. -- I have played football recently. -- I was playing football yesterday all day long. 2. I worked with my mother at home yesterday. -- I have already worked with my mum. -- I was working with my mom yesterday. 3. I went to the cinema last week. -- I have gone to the cinema recently. -- While I was going to the cinema, my friend broke his leg. 4. I didn t do my homework. -- I haven t done my homework yet. -- I wasn t doing my homework all day long. 5. I made an apple...

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