Which of these properties is mainly responsible for the difference in melting rate between salt water and fresh water?
O acidity
O temperature
G
O density
O mass

I think it's c not sure tho

Density is mainly responsible for the difference in melting rate between salt water and fresh water.

Explanation:

Hoped this helped.

"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."

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error