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andreev551 [17]

2 years ago

5

There are two common oxides of copper; one is 80% copper and the other is 89% copper by weight. Calculate the formula and name e

ach compound.

1 answer:

irakobra [83]2 years ago

8 0

80% copper (Cu)

Cu: 80 : 63.546 = 1.259

O: 20 : 16 = 1.25

Cu:O = 1 : 1

the formula: CuO

89% copper (Cu)

Cu: 89 : 63.546 = 1.4

O: 11 : 16 = 0.6875

Cu:O = 2:1

the formula: Cu₂O

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