I think it is the first one.

No, it's B.

Explanation:

It is a chemical reaction, but the reason for the lack of change in mass is not because atoms rearrange to form new substances. It's because atoms generally don't lose mass during a chemical reaction, because mass cannot be created or destroyed.

it is actually e

because even tho the old atoms turned into new atoms they had the same mass still

hope this helps!

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."