Question

1. How many hydrogen atoms are in an alkane that has 7 carbon atoms?

2. An alkane contains 18 H atoms. Name the compound.

Answer 1

1- there are 16 hydrogen atoms. ( heptane C7H16)

2- The compound is octane (C8H18)

Step-by-step explanation

to determine any atom in an alkane, this formula is used Cn H 2n +2, where n is the number of carbon atoms in the molecule.

to find the compound in Q2 we'll apply the numbers:

C nH₂n+2