Year 10:Chemistry

Ion Charges (Monatomic)

100

Charge of a Sodium ion?

+1

200

Charge of a Magnesium ion?

2+

300

Charge of an Aluminium ion?

3+

400

Charge of a nitrogen ion?

3-

500

Charge of a chlorine ion?

1-

Polyatomic Ions

100

Formula for a hydroxide ion?

OH^-

200

Formula for a nitrate ion?

NO₃^-

300

Formula for a sulfate ion?

SO₄^2-

400

Formula for a carbonate ion?

CO₃^2-

500

Formula for an ammonium ion?

NH₄⁺

Ionic Compound Formulas

100

Potassium fluoride?

KF

200

Sodium hydroxide?

NaOH

300

Magnesium phosphate?

Mg₃PO₄

400

Aluminium carbonate?

Al₂(CO₃)₃

500

Ammonium phosphate?

(NH₄)₃PO₄

Identifying Reactants and Products

100

Hydrochloric acid reacts with potassium hydroxide to form potassium chloride and water.

Reactants: Hydrochloric acid and Potassium hydroxide

Products: Potassium chloride and water.

200

Nitric acid and calcium carbonate are combined to produce calcium nitrate, water and carbon dioxide.

Reactants: Nitric acid and Calcium carbonate

Products: Calcium nitrate, water and carbon dioxide

300

Hydrogen gas and sodium chloride are produced when sodium metal is placed in hydrochloric acid.

Reactants: Sodium and hydrochloric acid

Products: Hydrogen gas and sodium chloride

400

Mercury (II) oxide decomposes to form mercury and oxygen gas.

Reactants: Mercury (II) oxide

Products: Mercury and oxygen gas

500

Carbon dioxide is produced with water and lithium fluoride when hydrofluoric acid and lithium carbonate are mixed.

Reactants: Hydrofluoric acid and lithium carbonate

Products: Carbon dioxide, water and lithium fluoride.

Balanced Symbol Equations

100

Hydrochloric acid reacts with potassium hydroxide to form potassium chloride and water.

HCl (aq) + KOH (aq) --> KCl (s) + H₂O (l)

200

Nitric acid and calcium carbonate are combined to produce calcium nitrate, water and carbon dioxide.

HNO₃ (aq) + CaCO₃ (s) --> Ca(NO₃)₂ (aq) + H₂O (l) + CO₂ (g)

300

Hydrogen gas and sodium chloride are produced when sodium metal is placed in hydrochloric acid.

Na (s) + HCl (aq) --> NaCl (aq) + H₂ (g)

400

Mercury (II) oxide decomposes to form mercury metal and oxygen gas.

HgO (s) --> Hg (l) + O₂ (g)

500

Carbon dioxide is produced with water and lithium fluoride when hydrofluoric acid and lithium carbonate are mixed.

HF (aq) + Li₂CO₃ (s) --> LiF (s) + CO₂ (g) + H₂O (l)