How many moles of CaBr2 are needed to prepare 2.90 L of a 0.50 M solution

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space