Question

Hydrogen forms numerous hydrides with many elements of the periodic table.
a) give the formula of the stable hydride for each of the following elements: Li, Be, B, N, O and F.
b) Classify the hydrides in (a) as being predominantly ionic/ covalent
c) Give the reaction equation for a reaction between the hydride of Li and water

Answer 1

a) LiH , BeH₂ , BH₃ , NH₃ , H₂O, HF .

b) ionic hydride = LiH

Covalent hydride = BeH₂ , BH₃ , NH₃ , H₂O, HF .

C). LiH + H₂ O = LiOH + H₂ .