Multiple Choice
How many hydrogen atoms are present in a molecule of water (H_2O)?
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- 1. Intro to General Chemistry3h 48m
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3. Chemical Reactions
Molecular Formula
Multiple Choice
How many total atoms are present in one molecule of H_2O_2?
A
2
B
5
C
4
D
3
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Verified step by step guidance1
Identify the chemical formula of the molecule, which is H_2O_2. This means the molecule contains hydrogen (H) and oxygen (O) atoms.
Determine the number of each type of atom in the molecule by looking at the subscripts: there are 2 hydrogen atoms and 2 oxygen atoms.
Add the number of hydrogen atoms and oxygen atoms together to find the total number of atoms in one molecule.
Write the expression for the total atoms as: \$2 + 2$.
Calculate the sum to find the total number of atoms in one molecule of H_2O_2.
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