Chemical Compounds

Match the following polyatomic ions

• Carbonate ion

• NH₄⁺

• Ammonium ion

• HCO₃^-

• Hydroxide ion

• SO₄^2-

• Bicarbonate ion

• OH^-

• Sulfate ion

• CO₃^2-

Organise these options into the right categories

Groups:

(a) Anions

,

(b) Cations

• Calcium ion

• F-

• Ammonium ion

• Bromide ion

• H+

• OH-

• Oxide ion

• Mg2+

Organise these options into the right categories

Groups:

(a) Monoatomic ions

,

(b) Polyatomic ions

• Hydroxide ion

• Hydrogen ion

• Nitride ion

• Nitrate ion

Magnesium ion and carbonate ions bond to form

Match the following polyatomic formulas to their ions

• Ca²⁺ Cl^-

• Na₂SO₄

• Na⁺ SO₄^2-

• Al(NO₃)₃

• K⁺ OH^-

• (NH₄)₃PO₄

• Al⁺³ NO₃^-

• KOH

• NH₄⁺ PO₄^3-

• CaCl₂

The ions: Li⁺ and F^-, make the chemical compound:

• LiF

• Lithium fluorine

• Li₂F

• FLi

Match the following polyatomic formulas to their names

• Aluminium sulfate

• Al₂(SO₄)₃

• Zinc phosphate

• Li₂CO₃

• Ammonium fluoride

• Zn₃(PO₄)₂

• Lithium carbonate

• AgNO₃

• Silver nitrate

• NH₄F

Select the correct statement

• Anions give their electrons to anions

• Anions give their electons to cations

• Cations give their electrons to anions

• Cations give their electrons to cations

Lithium ions and Hydride ions bond to form

• Lithium hydrogen

• Li₁H₁

• HLi

• LiH

Magnesium nitride is made of:

• Magnesium ions and nitrogen ions

• Mg⁺ and NO₃^-

• Magnesium ions and nitride ions

• Magnesium and nitrogen