Is copper (II) carbonate type I, type II or neither?

Which substances have the lowest melting points: ionic covalent, or metallic

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²

Salt in oceans comes from and of rocks