Answer:
The law of conservation of mass states that the quantity of the mass can neither be added to, neither can it be removed. The greater picture's mass will always be the same amount.
Answer: C
Explanation: I GOT IT RIGHT ON MY TEST DUDE AND MY TEACHER SAID IT WAS RIGHT TOO I GOT 100% BRO TRUST ME!
The answer should be 2KI(aq)+Hg(NO3)2(aq) = 2KNO3(aq) + HgI2(s). This is a double replacement reaction, the valence of elements will not change. The HgI2 is not soluble in water.
