Question

the chemical formula for ethane is c₂h₆. which statement correctly describes the atoms in five molecules of ethane? a 5 carbon atoms and 15 hydrogen atoms b 10 carbon atoms and 30 hydrogen atoms c 2 carbon atoms and 6 hydrogen atoms d 10 carbon atoms and 6 hydrogen atoms

Explanation:

Step1: Analyze ethane formula

The chemical formula of ethane is $C_2H_6$, which means 1 molecule of ethane has 2 carbon atoms and 6 hydrogen atoms.

Step2: Calculate for 5 molecules

For 5 molecules of ethane, the number of carbon atoms is $5\times2 = 10$, and the number of hydrogen atoms is $5\times6=30$.

Answer:

B. 10 carbon atoms and 30 hydrogen atoms