Question

For these ionic compounds, give the formula for the compound listed:

a) Lithium bromide

b) Lead (II) oxide

c) Chromium (III) sulfate

d) Potassium chloride

e) Sodium hypochlorite

f) Lead (II) iodide

Answer 1

A) Lithium bromide - LiBr (Li+ ion is formed by losing single electron and Br- ion is formed by gaining single electron)

B) Lead (II) oxide - also called as lead monoxide - PbO

(Where Pb lose 2 electrons to become Pb2+ and these are gained by oxygen to become O2-)

C) Chromium (III) Sulphate - Cr2(SO4)3 ( chromium III sulphate has +3 oxidation state, where the ion charges are Cr3+, O2- and S2-)

D) Potassium Chloride - KCl ( metal halide salt formed by K+ and Cl-)

E) Sodium hypochlorite - NaClO ( commenly known as bleach formed by each one atoms of sodium, chlorine and oxygen)

F) Lead (II) Iodide - PbI2