Learning objective
Explain why the mass of a metal oxide may be greater than the mass of the metal when oxygen reacts with the metal.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations
Subtopic
Mass changes when a reactant or product is a gas
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Quick explanation
Explain why the mass of a metal oxide may be greater than the mass of the metal when oxygen reacts with the metal
- This point belongs to Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations, especially Mass changes when a reactant or product is a gas.
- You need to be able to explain why the mass of a metal oxide may be greater than the mass of the metal when oxygen reacts with the metal.
- The key ideas to know are metal oxide.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Mass changes when a reactant or product is a gas to exam-style questions, flashcards, and revision notes for Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations.
Quick student answer
How do you explain the mass of a metal oxide may be greater than the mass of the metal when oxygen reacts with the metal?
Direct answer
In Chemistry, this page helps you answer questions about the mass of a metal oxide may be greater than the mass of the metal when oxygen reacts with the metal within Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are metal oxide and mass change.
Key terms
- metal oxide: A compound formed when a metal reacts with oxygen, resulting in a product that may have a greater mass than the original metal.
- mass change: The difference in mass observed during a chemical reaction, particularly when gases are involved as reactants or products.
Common trap
Misunderstanding Mass Increase: Explain that the increase in mass is due to the oxygen from the air combining with the metal, which adds to the total mass of the product.
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Revision notestopic notes
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Open revision notesRelated learning objectives
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