Chemistry, 28.07.2019 10:30 Hakika

If 100 grams of copper (cu) completely react with 25 grams of oxygen to form only cuo with no reactant left over, how many grams of cuo will form from 140 grams of copper and excess oxygen?

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If 100 grams of copper (cu) completely react with 25 grams of oxygen to form only cuo with no reacta...