Really much help full thank you very much continue your work weldon

Incredibly helpful! Thank you so much.

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you're amazing at explaining!

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Thank you so much

I am taught that they can be not identical to each other, i.e. one carbon chain can have 3 carbons whilst another can have 2 carbons, all you have to do is pick the highest priority one (most atomic number) Is this correct?

@RoxiHulet

Жыл бұрын

This is technically incorrect but not uncommon. Prioritization with atomic number is used in the (E) / (Z) system. The cis / trans system compares identical substituents and does not use prioritization. If there are not 2 identical substituents, you *technically* should not use the cis / trans system at all. However, it is usually easy to understand cis / trans prefixes even when they are applied to situations where it is technically not appropriate. When in doubt, use (E) / (Z) because it is ALWAYS appropriate.

@emsci

Жыл бұрын

​​@@RoxiHuletwesome, thanks, doing the SCH4U curriculum and we are only taught cis-trans stereoisomerism, so unfortunately I can only use that

When you can use Z and E please

@RoxiHulet

2 ай бұрын

As long as each carbon of the alkene has 2 different substituents, you can use E / Z notation.