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melamori03 [73]
3 years ago
6

I really need help on this question.

Chemistry
1 answer:
natita [175]3 years ago
7 0
I need that answer too
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What percentage of the mass of hydrofluoric acid (HF) is contributed by hydrogen?
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This problem is asking for the percent by mass of hydrogen in hydrofluoric acid. At the end, the answer turns out to be D. 5%​ as shown below:

<h3>Percent compositions:</h3>

In chemistry, percent compositions are used for us to know the relative amount of a specific element in a compound. In order to do so for hydrogen, we use the following formula, which can also be applied to any other element in a given compound:

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To start the chemical reaction, what must happen between the enzyme and the substrate?.
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