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s344n2d4d5 [400]
3 years ago
9

Activity

Chemistry
1 answer:
Monica [59]3 years ago
8 0

Answer:

The mass of a pure substance represents a specific number of pure substance 'molecules', as defined by molecular weight. The relative atomic mass (atomic weight) in grams/mole (g/mol) is the molar mass of a substance, which means it is the mass of one mole of that substance.

Explanation:

Hope this helps :)

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Explanation:

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The table shows the amount of radioactive element remaining in a sample over a period of time.
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Using the formula;

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Using;

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Learn more: brainly.com/question/6111443

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