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3 years ago

15

If 156 grams of chromium react with an excess of oxygen, as shown in the balanced chemical equation below, how many grams of chr

omium oxide can be formed? (1 point)
4Cr + 3O2 yields 2Cr2O3

78 grams

104 grams

228 grams

912 grams

1 answer:

GenaCL600 [577]3 years ago

7 0

228 grams
start with mass of Cr multiply by molar mass of Cr mole to mole ratio between Cr and Cr2O3 times molar mass of Cr2O3

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