What are the names, formulas and uses for two different compounds containing beryllium?

Two compounds of Be which are useful are Beryllium oxide
(BeO) and Beryllium chloride (BeCl2)

BeO is a white
crystalline solid that is prepared by heating beryllium carbonate, or through
dehydration of beryllium hydroxide or by combustion of
Be.

BeCO3--> BeO +
CO2

Be (OH) 2 --> BeO +
H2O

2 Be + O2 --> 2
BeO

This compound is used in many applications that require
the properties of both an electrical insulator and an excellent heat conductor. BeO has
a high strength and hardness and a very high melting point. It is used in radio
frequency transmitters in telecommunication.

Beryllium
chloride is a Lewis acid. It is prepared by treating Be with
HCl.

Be + 2 HCl --> BeCl2 +
H2

The anhydrous salt of BeCl2 is used in several organic
reactions as a catalyst.