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.
The harmonica is a small, versatile instrument played in nearly every kind of music and most cultures the world over. Though it may seem confusing to learn at first glance, the harmonica is actually an easy and fun instrument to get started playing. Read the steps below to learn how to play a harmonica.
Most kinds of American folk, pop, blues, or rock music use a simple 10-hole harmonica, like the Marine Band that Hohner is known for. But the same harmonica can be used entirely differently by two different players. Traditional harmonica players play songs in the key that the harmonica is labeled for.