All Quantitative chemistry and stoichiometry articles

Poster

How to balance chemical equations

2026-05-11T07:00:00Z

Simple steps to success, confidence and fluency with balancing equations for 14–16 learners

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Reacting masses and gas volumes | In context | 14–16

Put reacting masses and gas volumes into context with questions based on fertiliser in food prodcution

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Reacting masses and gas volumes | Knowledge check | 14–16

Assess understanding of reacting masses at foundation and higher level, plus gas volumes (higher only)

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Concentration of solutions and titration | In context | 14–16

Put concentration of solutions and titration into context with questions based on acids in fruit juices

Lesson plan

Measuring vitamin C in fruit using a microscale titration | 14–16 years

Compare the amount of vitamin C in fruit and juices using a microscale titration in this practical lesson plan with follow-up questions

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Concentration of solutions and titration | Knowledge check | 14–16

Assess learning of concentration of solutions and titration with a higher and foundation worksheet

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Relative mass | In context | 14–16

Practise relative mass calculations using the context of sugars in food and our bodies

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Concentration of solutions and titration | Structure strip | 14–16 years

Support learners to write about concentration of solutions and titration, using scaffolded writing prompts

Lesson plan

Practising calculations in chemistry | 14–16 years

Help your learners check or revise key calculations in chemistry using this lesson plan with scaffolded activities and worked examples

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Excess copper oxide | Johnstone’s triangle worksheets | 14–16 years

Explore the reaction of sulfuric acid with excess reactant copper oxide at three conceptual levels with Johnstone’s triangle

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Relative mass | Knowledge check | 14–16

Assess knowledge and understanding of relative mass with a higher and foundation worksheet

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Limiting and excess reactants: quantitative | Developing understanding | 14–16 years

Develop learners quantitative understanding of limiting and excess reactants with the support of bar diagrams

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Amount of substance in moles | Structure strip | 14–16 years

Use scaffolded prompts to support learners to write about amount of substance in moles

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Limiting and excess reactants (qualitative) | Developing understanding | 14–16 years

Introduce limiting and excess reactants using an analogy of ice cream and ice cream cones

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Amount of substance in moles | Knowledge check | 14–16

Assess learning of amount of substance measured in moles with this higher level worksheet

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Balanced chemical equations | Structure strip | 14–16 years

Use scaffolded prompts to support learners to write about balanced chemical equations

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Reacting masses and gas volumes | Structure strip | 14–16 years

Use scaffolded prompts to support learners to write about reacting masses and gas volumes

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Amount of substance in moles | In context | 14–16

Put amount of substance measured in moles into context with questions based on common practical experiments

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Determining unknown concentration | Johnstone’s triangle worksheets | 14–16 years

Guide learners to connect their thinking about calculating unknown concentrations following a titration

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Concentration of acids | Johnstone’s triangle worksheets | 14–16 years

Learners connect their understanding of dissolved ions, concentration and how chemicals are labelled with this single-page worksheet