PLZZ WILL GIVE BRAINLIST JUST PLZ HELP PLZZZ HELPPP ITS A TESTTT When the minerals within a rock dissolve in water, what happens to the mass of the rock?

A. The mass of the rock decreases because the minerals are now in the water.

B. The mass of the rock increases because new compounds are created in the water.

C. The mass of the rock remains unchanged because the minerals disappear

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.