Alkanes are hydrocarbons containing only single bonds. Answer please

Question

How many hydrogen atoms are in an acyclic alkane with 7 carbon atoms?

H atoms :

How many hydrogen atoms are in an acyclic alkane with 12 carbon atoms?

H atoms :

Answer 1

If you are talking about a carbon chain that is fully saturated with no double or triple bonds, hence -ane (this is just terminology for a carbon with all of the bonds that it can have, because carbon bonds with 4 at a time, you can simply us the equation CnH2n+2.

for example methane is one carbon bonded to 4 Hydrogens

ethane is 2 carbon chain bonded to 6 Hydrogens

propane is C3H8

butane is C4H10.....

If you follow the pattern:

the number of Hs that saturate the carbon chain,it is double the number of Carbon atoms in the molecule, +2

So using this formula a carbon chain of 7, C7H16

so you would have 16 hydrogens

and if you had a carbon chain of 12

C12H26

Hydrogens would be 26

Answer 2

Yes Alkanes only have single bonds, all IUPAC names for alkanes end in ane, which denotes a single bond, alkenes have a double bond between two carbons and names end in ene; while alkynes have a triple bond between two carbons and their names always end in yne.