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Komok [63]
3 years ago
8

Please answer 11 and 12, I'm not sure of my answers and I'm gonna be tested on this tomorrow. Thanks!

Chemistry
1 answer:
Novay_Z [31]3 years ago
8 0
11. I would say physical because the color of the item is changed and the texture and density is changed aswell.
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Answer:

Explanation:

Given parameters:

Density of cobalt = 8.9gcm⁻³

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Solution

Density can be defined as the mass per unit volume of a substance:

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The unknown in the problem is Volume:

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Answer:

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Explanation:

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