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Chemia

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Oblicz zawartość procentową metalu w tlenku wapnia. Zapisz całe obliczenia.

Odpowiedź :

Анонимviz Анонимviz

Odpowiedź:

40+16=56u

100%=56u

40*100/56=71,4%

Odp.: Zawartość procentowa metalu w tlenku wapnia wynosi 71,4%.

Wyjaśnienie:

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