used in chemical equations to indicate the physical state of a substance

a balanced equation showing all the ions involved in a reaction

a type of reaction in which a substance gains oxygen or loses electrons

a type of reaction in which a substance loses oxygen or gains electrons

Ionic equations: salt formation

Combined science

Describing salts

Hazard symbols and equipment

Acid-base reactions

Chemical reactions of acids with metals and metal carbonates

Concentration of solutions

pH scale and indicators

Solubility rules

Making a pure dry sample of a soluble salt

Adapting a multistep chemical procedure for making a pure dry salt

Change in pH: practical

Comparing concentration with strength

Titrations: making soluble salts

In the Electrolysis unit, pupils will build on their understanding of chemical reactions to explore the process of electrolysis and its applications.

In the Acids and Bases unit, pupils learned about the properties of acids, bases, and alkalis, and the reactions between them to form salts and water.

This unit explores empirical formulae, balanced chemical and ionic equations, gas identification, acid reactions, and pH as a measure of hydrogen ion concentration. It covers separation techniques and focuses on planning experiments, accurate measurements, safety, and communicating findings.

Making salts

What does the subscript number 4 in H$$_2$$SO$$_4$$ represent?

5Al$$_2$$(SO$$_4$$)$$_3$$ is written down as part of a balanced chemical equation. Which number is the coefficient?

Potassium iodide can be represented as KI$$_{(aq)}$$ in a chemical equation. What does $$_{(aq)}$$ tell us about the potassium iodide?

In a solution there may be several types of ions, of which some react together and others do not. What is the name of the ions that stay in solution and do not react? 

barium chloride + sodium sulfate → barium sulfate + sodium chloride

BaCl₂ (aq) + Na₂SO₄ (aq) → BaSO₄ (s) + 2NaCl (aq)

Ba²⁺(aq)+2Cl⁻(aq)+2Na⁺(aq)+SO₄²⁻(aq) → Ba²⁺(aq)+SO₄²⁻(aq)+2Na⁺(aq)+2Cl⁻(aq)

Ba²⁺ (aq) + SO₄²⁻ (aq) → BaSO₄ (s)

What is the correct ionic equation for the formation of barium sulfate?

Which ions react in the neutralisation reaction between sulfuric acid and potassium hydroxide?

What is the chemical name for the salt CaCl$$_2$$?

name ending for a compound with 3 or more elements, one being oxygen

name ending for a compound with a metal and singular non–metal

shows the actual number of atoms of each element in a compound

equations using chemical formulae and state symbols

Match the following key terms to their definitions.

Which of the following are examples of salts with names ending with -ide?

Which of the following are examples of salts with names ending with -ate?

What types of salts are formed when sulfuric acid reacts with a metal oxide?

What types of salts are formed when hydrochloric acid reacts with a metal oxide?

Ionic equations: salt formation

Lesson outcome