Last updated on Jun 09, 2026

Atom economy (Edexcel GCSE Chemistry): Quizzes

Practise the questions

11 questions from this quiz

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Atom economy (Edexcel GCSE Chemistry): Quizzes

Practise the questions

What does atom economy measure in a chemical reaction?

What is the benefit of a higher atom economy?

What is the formula for calculating percentage atom economy?

In fermentation, if MrM_rMr​ of ethanol is 92 and total MrM_rMr​ is 180, what is the atom economy?

What does a 51% atom economy in fermentation of glucose mean?

What is the atom economy of the hydration of ethene to make ethanol?

What does theoretical mass represent?

What is the first step in calculating theoretical mass?

In 2H2+O2→2H2O2H_2 + O_2 → 2H_2O2H2​+O2​→2H2​O, how many moles of H2OH_2OH2​O form from 2 moles of H2H_2H2​?

If MrM_rMr​ of H2H_2H2​ is 2, how many moles are in 8g of H2H_2H2​?

If 4 moles of H2OH_2OH2​O are produced and MrM_rMr​ of H2OH_2OH2​O is 18, what is the theoretical mass?

Explore Edexcel GCSE Chemistry Revision Notes by Topics

Ionic bonding

Ionic Compounds

Covalent bonding

Simple molecular structures

Giant covalent structures

Diamond

Graphite

Graphene & Fullerenes

Metallic bonding

States of Matter

Simple and Fractional Distillation

Filtration & Crystallisation

Chromatography

Water treatment

Acids and alkalis

Investigating neutralisation reactions

Strong & Weak Acids

Reactions of acids

Making insoluble salts

Making soluble salts

The Reactivity Series

Reactivity of metals

Displacement reactions

Extracting metals using carbon

The Process of Electrolysis

Electrolysis to extract metals

Biological methods to extract metals

Recycling

Life cycle assessments

Dynamic equilibrium

Le Chatelier’s Principle: Changing Concentration

Calculation with gases

Percentage yield

Atom economy

Choosing a reaction pathway

Typical Properties of Transition Metals

Alloys as Useful Materials

Corrosion & Its Prevention

The Haber Process

Fertilisers

Fuel cells

Group 1 – Alkali metals

Group 7 – Halogens

Halogen displacement reactions

Group 0 - Noble Gases

Rates of reaction

Factors that Affect the Rate of Reaction

Rate experiments involving precipitation

Calculating Rates of Reactions

Collision Theory & Activation Energy

Catalysts

Endothermic and exothermic reactions

Measuring temperature change

Bond energies

Intermolecular forces of attraction

Saturated Hydrocarbons

Unsaturated Hydrocarbons

Pollutants

Cracking & Alkenes

The Atmosphere

Greenhouse Gases

Climate change

Explore Edexcel GCSE Chemistry Model Answers by Topics

Ionic bonding

Ionic Compounds

Covalent bonding

In fermentation, if $M_r$ of ethanol is 92 and total $M_r$ is 180, what is the atom economy?

In $2H_2 + O_2 → 2H_2O$ , how many moles of $H_2O$ form from 2 moles of $H_2$ ?

If $M_r$ of $H_2$ is 2, how many moles are in 8g of $H_2$ ?

If 4 moles of $H_2O$ are produced and $M_r$ of $H_2O$ is 18, what is the theoretical mass?