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Confused about the structure of an alkene

Is CH3CH=CHC3H7 a correct alternative to CH3CH=CHCH2CH2CH3?

PS: MY CIE AS LEVEL CHEMISTRY (9701) RETAKE EXAM'S TOMORROW, SO PLZ, PLZ, PLZ HELP ASAP!!!!
They are both the same molecule

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z33
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yeah they're different ways of showing the same thing

one is a molecular formula and one is a structural i think

an alkene is anything that has a C-C double bond
Original post by Mohammad Shoumik
Is CH3CH=CHC3H7 a correct alternative to CH3CH=CHCH2CH2CH3?

PS: MY CIE AS LEVEL CHEMISTRY (9701) RETAKE EXAM'S TOMORROW, SO PLZ, PLZ, PLZ HELP ASAP!!!!


The first is a cross between structural and molecular formulae. There are two possible structures.

The second is a structural formula. There is only one possible structure and it is also one of the two possible structures for the previous formula.

So if you had the molecule in the second formula, writing the first formula is correct, but probably isn't specific enough for the question.

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