Which.i think its the answer
7.22 moles of C2H6. Since there are 2 carbon atoms per C2H6, we must multiply the number of moles of C2H6 by 2 to get the number of moles of Carbon which is 14.4 or 14 if using two sig figs.
Answer：
It is a neutral atom and does not carry a charge
It’s c because a wave cycle is repeating patterns all over again and again
