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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.
Chemistry
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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Answer:

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"The least reactive elements are those who have a full outermost valence shell ie they have 8 electrons in the outer shell so elements such as helium, neon, radon or the transition elements."

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Answer:

The answer to your question is  Q = 18702.5 J

Explanation:

Data

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4.- Result

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