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Yuliya22 [10]
2 years ago
14

If each water molecule contains 2 hydrogen atoms, how many total oxygen atoms in 20 water molecules?

Chemistry
1 answer:
Paul [167]2 years ago
7 0
The answer is 10 because if their is 20 molecules of hydrogen then their is one oxygen molecule for each which results in 20 divided by two which equals 10
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kramer

Answer:

A

Explanation:

To label an element correctly using a combination of the symbol, mass number and atomic number furnishes some important information about the element.

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Looking at the question asked, we have the element symbol in the correct position as Ca, with 42 also in the correct position which is the mass number. The third number which is 20 is thus the atomic number of the element.

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