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barxatty [35]
3 years ago
15

All atoms of the same element must have the same number of

SAT
1 answer:
Musya8 [376]3 years ago
3 0
The answer is A. Protons.
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The weight percent is of caffiene is 7.98%.

There are several ways of expressing concentration in chemistry. One of the methods of expressing concentration is by the use of percentage.

In this case, we want to obtain the percent weight/weight concentration of caffeine in benzene.

From the question, we can see that;

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Learn more: brainly.com/question/19953404

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