How many hydrogen atoms are in one molecule of the alkane with 5 carbon atoms?
Answer and explanation
Correct answer: D. 12
- Step 1: Alkanes follow the general formula CnH2n+2.
- Step 2: For n = 5 the molecule is C5H12.
Answer
12.
Why not the others: '10' uses the alkene formula CnH2n; '8' uses the alkyne formula CnH2n-2; '7' adds 2 to the number of carbons only.
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