Answer :

bettystephenn

Answer:

4

Explanation:

water is H2O so there is 2 hydrogen atoms when there is 1 mol of water

H:H2O

2:1

so when there are 2 moles of water, hydrogen needs to ×2 and becomes 4

Answer:

Explanation:

1 water molecule = 2 Hydrogen atoms + 1 oxygen atom. So, 1 mole H2O = 1.2044×10^24 hydrogen atoms. Therefore 2 mole H2O will have 2.4088×10^24 hydrogen atoms.

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