what are hydrides and oxides ?
Hydrides are those compounds in which hydrogen is bonded to an element. These compounds contain at least one hydrogen in its chemical formula. The chemical formulae for some element hydrides are:
RH: e.g., LiH, NaH
RH2:MgH2,H2O ,H2S
RH3: NH3,BH3,PH3
RH4:CH4 where R denotes the element.
Oxides are the chemical compounds in which oxygen is bonded to an element. These compounds contain at least one oxygen atom in its chemical formula. The chemical formulae for some element oxides are:
R2O: Li2O, Na2O K2O
RO: MgO , ZnO
R2O3: Al2O3
RO2: CO2, SiO2
R2O5: N2O5
RO3: SO3
R2O7: Cl2O7 where R denotes the element.