Quiz: Explaining Mass Changes Using Particle Models
AQA GCSE Chemistry (8462)
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Building on what you've learned about conservation of mass and related concepts, let's test your knowledge of explaining mass changes using particle models!
What does the law of conservation of mass state?
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Which of the following statements about mass changes are true? (Select all that apply)
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In a chemical reaction, if gas escapes, the measured mass of the {{blank0}} may be less than the total mass of the {{blank1}}.
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Match the items on the left with their correct pairs on the right
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Calculate the relative formula mass (Mr) of CO2. (C = 12, O = 16)
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Which type of system allows gases to escape, causing apparent mass changes?
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Match the items on the left with their correct pairs on the right
The relative formula mass (Mr) of a compound is calculated by adding the relative atomic masses of the {{blank0}} in the formula.
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