1. Write formulas for the following; show all work.

a. sodium bromide Na⁺ Br^- NaBr

b. magnesium phosphide Mg⁺² P^-3 Mg₃P₂

c. calcium phosphate Ca⁺² PO₄^-3 Ca₃(PO₄)₂

d. magnesium chloride Mg⁺² Cl^-1 MgCl₂

e. beryllium carbonate Be⁺² CO₃^-2 BeCO₃

f. strontium nitride Sr⁺² N^-3 Sr₃N₂

g. barium nitrate Ba⁺² NO₃^- Ba(NO₃)₂

h. potassium nitride K⁺ N^-3 K₃N

i. sodium chlorate Na⁺ ClO₃^- NaClO3

j. sodium fluoride Na⁺ F^- NaF

k. lithium hydroxide Li⁺ OH^- LiOH

l. calcium hydroxide Ca⁺² OH^- Ca(OH)₂

m. calcium sulfide Ca⁺² S^-2 CaS

n. calcium hydride Ca⁺² H^- CaH₂

o. ammonium bromide NH₄⁺ Br- NH₄Br

p. ammonium hydroxide NH₄⁺ OH^- NH₄OH

q. potassium hydrogen carbonate K⁺ HCO₃^- KHCO₃

r. aluminium chloride Al⁺³ Cl^- AlCl₃

s. aluminium iodide Al⁺³ I- AlI₃

t. gallium nitride Ga⁺³ N^-3 GaN

u. aluminium sulphide Al⁺³ S^-2 Al₂S₃

v. hydrogen carbonate H⁺ CO₃^- H₂CO₃

_w. lithium sulphate Li⁺ SO₄^-2 Li₂SO₄