Answer
a) Lithium Carbonate
b) Magnesium Sulfate
c) Sodium Hypochlorite
d) Sodium Phosphate
Work Step by Step
$a) Li_{2}CO_{3}$= Lithium Carbonate
$b) MgSO_{4}$= Magnesium Sulfate
$c) NaClO$= Sodium Hypochlorite
$d) Na_{3}PO_{4}$= Sodium Phosphate