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what is the value of n in ch3(ch2)nch3 if the name of the hydrocarbon is heptane?
2
5
7
8

The value that n must be in the organic compound is that it must be 5. This will result in the name of the hydrocarbon to be heptane as heptane possess 7 carbons in the longest parent chain. So the formula would be CH3(CH2)5CH3. Distributing the 5 inside and making it a subscript to the carbon gives us 5. Adding up all of the carbons together should give you the correct number of carbon atoms with respect to its name, heptane. 1+5+1= 7. so the answer is 5

Is there a diagram/picture you can provide? it seems this question goes along with a