Multiple Choice
Which of the following is a molecule?
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3. Chemical Reactions
Molecular Formula
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How many oxygen atoms are present in one molecule of H2SO4?
A
8
B
4
C
6
D
2
Verified step by step guidance1
Identify the chemical formula of the compound given, which is H2SO4.
Recognize that the subscript number following an element symbol in a chemical formula indicates the number of atoms of that element in one molecule.
Look specifically at the oxygen (O) in H2SO4; the subscript after O is 4, meaning there are 4 oxygen atoms in one molecule.
Understand that the number of oxygen atoms is directly given by the subscript and does not require any further calculation.
Conclude that one molecule of H2SO4 contains 4 oxygen atoms.
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