Quiz: Key Concepts in Chemistry
Edexcel Combined Science GCSE
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Building on what you've learned about formulae, equations, and hazards, let's test your knowledge of key concepts in chemistry!
What is the smallest particle of an element that retains its chemical properties?
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Which of the following are properties of covalent bonds? (Select all that apply)
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The {{blank0}} is the centre of an atom and contains {{blank1}} and neutrons.
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Match the items on the left with their correct pairs on the right
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What is the relative formula mass (Mr) of H2O? (Use: H = 1, O = 16)
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Which type of particle has a negative charge?
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Which of the following are examples of physical changes? (Select all that apply)
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Match the items on the left with their correct pairs on the right
Ionic bonds are formed when {{blank0}} are transferred from one atom to another.
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What is the charge on an ion formed when an atom loses electrons?
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