The atoms in a have a definite volume, but move quickly enough to overcome the forces of attraction between them. a. solid b. liquid c. gas

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

Iwould appreciate if someone could me.

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %