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MaRussiya [10]
3 years ago
5

A cobalt atom has 27 protons. What number of neutrons would make a cobalt

Chemistry
1 answer:
tamaranim1 [39]3 years ago
7 0
The answers is 54 because 27 protons times theses nuts = 54
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Answer:

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What is the density of a substance that weighs 340g and has a volume of 40cm3?
jeka94

Answer:

<h2>8.5 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

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