yuni9
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How many H2 and O2 molecules do you need to make exactly 4 water molecules with no leftovers?

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joceynh638
you need 4 H2 molecules and 2 O2 molecules.
This is because water is H2O which is 2 Hydrogen and 1 Oxygen so if you want to make 4 water molecules, you’ll need 8 hydrogen and 4 oxygen.
Given H2 you need 4 because 4•2 is 8 and for O2 you need 2 because 2•2 is 4.
I hope this makes sense.

The number of H2 and O2 molecules needed should be 4 and 2.

Calculation of the number of H2 and O2 molecules:

We know that the water i.e. H2O that comprise of 2 hydrogen and 1 oxygen so in the case when we have to make 4 water molecules so it needed 8 hydrogen and 4 oxygen

So for H2 it needs 4 and for O2 it needs 2

Therefore, The number of H2 and O2 molecules needed should be 4 and 2.

Learn more about oxygen here: https://brainly.com/question/24136784

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