Предмет: Химия, автор: Tatevosyants

При взаимодействии 0,0322 г алюминия с 20 мл 20% соляной кислоты выделился газ. Какой объем займет выделившийся газ при нормальных условиях? (В ответе укажите целое число мл)

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Автор ответа: тайная

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(560-y):8=30;
(900-w)*60=5400;
m*90-705=1095;
260+140:n=330;
(480+k):3000=2;
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помогите решить, если возможно (математика 4 класс).

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