Open Question
Identify the following as alkanes, alkenes, cycloalkenes, or alkynes:
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13. Alkenes, Alkynes, and Aromatic Compounds
Intro to Hydrocarbons
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Write the molecular formula for an alkyne with 4 C atoms.
A
C4H8
B
C4H10
C
C4H6
D
C4H4
Verified step by step guidance1
Understand that alkynes are hydrocarbons with at least one carbon-carbon triple bond. The general formula for alkynes is CnH2n-2.
Identify the number of carbon atoms in the alkyne. In this case, the problem specifies 4 carbon atoms.
Apply the general formula for alkynes: CnH2n-2. Substitute n with 4, which represents the number of carbon atoms.
Calculate the number of hydrogen atoms using the formula: H = 2n - 2. For n = 4, calculate 2(4) - 2.
Combine the number of carbon and hydrogen atoms to write the molecular formula for the alkyne: C4H6.
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