Starter quiz
- Which of the following best describes an element?
- A substance made of two or more different types of atoms chemically bonded.
- A pure substance consisting of only one type of atom. ✓
- A mixture of two or more substances.
- A substance that cannot change physical state.
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- What happens to the total mass of substances during a chemical reaction?
- It increases.
- It decreases.
- It remains the same. ✓
- It varies depending on the reaction.
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- Match the following terms with their definitions:
- Reactants⇔Substances present at the start of a reaction. ✓
- Products⇔Substances formed by a chemical reaction. ✓
- Chemical Equation⇔A symbolic representation of a chemical reaction. ✓
- Reaction Type⇔The classification of a chemical reaction. ✓
- A ______ is a substance made of two or more elements chemically bonded.
- Compound ✓
- Mixture
- Gas
- Aqueous solution
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- Why is it important to follow safety protocols in the laboratory?
- To prevent accidents and injuries. ✓
- To ensure accurate experimental results.
- To protect the environment. ✓
- To speed up experiments.
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- A ______ change results in the formation of new substances with different chemical properties, such as burning or rusting.
- 'chemical' ✓
Exit quiz
- In an oxidation reaction involving magnesium and oxygen, which of the following is a correct product?
- Magnesium chloride
- Magnesium oxide ✓
- Magnesium hydroxide
- Magnesium carbonate
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- What are the three necessary components for combustion to occur?
- Fuel ✓
- Light
- Heat ✓
- Water
- Oxygen ✓
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- ______ is a type of reaction in which oxygen bonds to elements of the reactants.
- 'oxidation' ✓
- What is rusting?
- The formation of water on a metal surface.
- The corrosion of iron or steel in the presence of water and oxygen. ✓
- The melting of iron at high temperatures.
- The process of painting metal surfaces.
- The reaction of metals with oxygen to form metal oxides.
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- An oxide is a compound containing ______ that is formed during an oxidation reaction.
- 'oxygen' ✓
- Match the key words to their definitions:
- Rusting⇔The corrosion of iron or steel in the presence of water and oxygen. ✓
- Corrosion⇔When a metal reduces in size due to a chemical reaction. ✓
- Oxidation⇔A reaction in which oxygen bonds to elements of the reactants. ✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- Combustion requires fuel, heat and oxygen, and will not happen without one of them.
- When a substance reacts to combine with oxygen, this is called oxidation.
- Examples of oxidation are combustion and rusting.
- One of the products of oxidation is always an oxide, but the other products vary.
Common misconception
Pupils often think that all metals rust.
Explain that rust is a form of iron oxide and show pupils other examples of metal oxides, e.g. copper oxide, to show how different they are.
Keywords
Oxidation - a type of reaction in which oxygen bonds to elements of the reactants
Oxide - a compound containing oxygen that is formed during an oxidation reaction
Rusting - refers to the corrosion of iron or steel, in the presence of water and oxygen
Corrosion - when a metal reduces in size due to a chemical reaction
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