What is this equivalent to
-k+3k

+2k

Explanation:

Because +++k and -k answer is ++k

One +Cancel with -

i believe it is c.) 1575 j.

"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."