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ethene: CH2=Ch2

propene: CH2=CH3CH

There is nowhere else to place a double bond! (C=C)

No number is used in the names ethene and propene because the number would be useless as the double bond is located at carbon "1"

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Q: Why is no number used in the names ethene and propene?
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Related questions

What is propene used for?

The main uses of Ethene (common name ethylene) and propene (common name propylene) is in the synthesis of polyethylene and polypropylene. They are also used in the synthesis of other chemicals. Propene is used to make epoxy resins for example. Butane and pentane are used as fuels and also in chemical synthesis.


Is propylene used in welding?

Yes, propylene (propene) can be used for welding.


Which tets coudl be used to distinguish between ethene and methane?

Ethene can react with Bromine water - turns colourless


How is ethene used in your everyday life's?

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What is the raw material used to obtain ethane by hydrogenation?

ethene


What is the sourceof small molecules which are used in making synthetic polymers?

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What is the covalent compound C3H6 the Greek prefix used to represent the cation is?

This question does not make sense. However, C3H6 is the Alkene , 'propene'. The prefix use to indicate the number of carbons is 'prop'


Why is ethene used industrially rather than chloroethane?

It will be cheaper, since you do not have to make chloroalkane first.


What are methane and ethane and propene used for?

Methane, ethane, and propane are used primarily as fuels; they are, in decreasing order, the most common constituents of natural gas. Propene, like most other unsaturated hydrocarbons, can be used as a fuel, but generally is not, because it is more economically valuable as a starting material for making more valuable products such as iso-propyl alcohol.


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What is the function of ethylene?

It depends upon process under consideration ethylene or ethene is an anaesthetic gas used in hospitals.


What chemicals are in a plastic bag?

Supermarket carrier bags are mostly poly(ethene) which is commonly called polythene. High density poly(ethene) will make thicker and stronger bags than low density poly(ethene). The strong ones that supermarkets sell you that have a 'woven' feel to them are poly(propene) otherwise known as polypropylene.