Answer
🧪 Chemical Formulas with Explanation
Magnesium sulfate (Epsom salt)
MgSO₄
Magnesium has a +2 charge (Mg²⁺) and sulfate is SO₄²⁻. One-to-one ratio balances charges.
Zinc oxide
ZnO
Zinc is Zn²⁺ and oxide is O²⁻. They combine in a 1:1 ratio.
Aluminum hydroxide
Al(OH)₃
Aluminum is Al³⁺ and hydroxide is OH⁻. Three OH⁻ ions are needed to balance one Al³⁺.
Lithium bromide
LiBr
Lithium is Li⁺ and bromide is Br⁻. A simple 1:1 ionic compound.
Ammonium sulfate
(NH₄)₂SO₄
Ammonium is NH₄⁺ and sulfate is SO₄²⁻. Two ammonium ions are needed to balance one sulfate ion.
Sodium hypochlorite (Bleach)
NaClO
Sodium is Na⁺ and hypochlorite is ClO⁻. A 1:1 ionic salt commonly used in bleach.
Strontium phosphate
Sr₃(PO₄)₂
Strontium is Sr²⁺ and phosphate is PO₄³⁻. A 3:2 ratio (3 Sr²⁺ and 2 PO₄³⁻) balances the charges.
Silver acetate
AgC₂H₃O₂
Silver is Ag⁺ and acetate is C₂H₃O₂⁻ (or CH₃COO⁻). They pair in a 1:1 ratio.
Calcium cyanide
Ca(CN)₂
Calcium is Ca²⁺ and cyanide is CN⁻. Two cyanide ions balance one Ca²⁺.
Sulfur dioxide
SO₂
A molecular compound — sulfur forms a covalent bond with two oxygen atoms.