The main reason for that is the pressure and the heat. We know through seismography that temperatures in the inner parts of the Earth actually exceed the surface temperature of the Sun! That is pretty hot. So why is the center of the Earth Hot. The answer comes from a lot different sources. The first is heat left over from the formation of the Earth. The next source is gravitational pressure put on core by tidal forces and the rotation of the Earth.
The anhydrous form is a pale green or gray-white powder, whereas the pentahydrate (CuSO 4 Â·5H 2 O), the most commonly encountered salt, is bright blue. Copper (II) sulfate exothermically dissolves in water to give the aquo complex [Cu(H 2 O) 6 ] 2+ , which has octahedral molecular geometry and is paramagnetic.Other names for copper(II) sulfate are blue vitriol and bluestone.hen water is then added to the anhydrous compound, it turns back into the pentahydrate form, regaining its blue color, and is known as blue vitriol. Copper(II) sulfate pentahydrate can easily be produced by crystallization from solution as copper(II) sulfate is quite hygroscopic.
When copper (II) sulfate solution reacts with sodium hydroxide, a blue precipitate is formed.The equation for the reaction is: Cu(OH)2 is responsible for the blue color.ron (II) sulfate and sodium hydroxide form a double displacement reaction with a precipitate. The products are Iron (II) hydroxide (s) and sodium sulfate (aq).