An unbranched alkene with one double bond and 4 carbon atoms would have 8 hydrogen atoms.
What are Hydrocarbons?
Hydrocarbon belong to any class of organic chemicals made up of only carbon (C) and hydrogen (H).
If you add an unbranched alkene with one double bond and 4 carbon atoms to a butane having 10 hydrogen atoms, it will have 2 fewer hydrogen atoms making the unbranched alkene to have 8 hydrogen atoms.
In conclusion, an unbranched alkene with one double bond and 4 carbon atoms would have 8 hydrogen atoms.
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