Chemistry
NULL
Medium
Question
Molecular mass of water (18g) means__________________?
A
1-mole molecules of water
B
1-gram molecule of water
C
3-gram atoms
D
all
✓ Official correct answer
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A
1-mole molecules of water
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B
1-gram molecule of water
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C
3-gram atoms
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D
all
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Explanation
Since water has a molecular mass of 18 g/mol and each molecule contains 3 atoms (2 hydrogen, 1 oxygen), 18g of water correctly represents 1 mole of water molecules, 1 gram-molecule of water, and 3 gram-atoms — making all three statements valid.
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