GCSE Chemistry – Measuring a reaction

Last updated: 13/04/2020
WJEC GCSE Science – Double science foundation Rate of chemical change GCSE Chemistry – Measuring a reaction

Learning Objectives

-I can describe different ways of measuring the mass or volume of a product of a reactant
-I can explain why the mass of a reaction appears to change
-I can explain that in any measurement there is a degree of uncertainty

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  1. Current
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  3. Answered

  1. What is the definition of a chemical reaction?

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  2. What can any reaction incur?

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  3. What is the equation for measuring reaction rate?

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  4. What is the equation for measuring reaction rate?

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  5. What are the units for mass?

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  6. What are the units for time?

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  7. What are the units for volume of gas?

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  8. Which of the following is a suitable way to measure the rate of reaction?

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  9. Which of the following is a suitable way to measure the rate of reaction?

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  10. When using the change in mass to find the rate of a reaction, what is measured?

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  11. What should be used to measure the mass of a reaction?

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  12. In order to use the change in mass to measure a reaction, which of the following needs to be given off?

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  13. During the measuring of the mass change of a reaction mixture, when should the mass be measured?

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  14. What happens to the mass of a reaction as it progresses?

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  15. When is the mass of a reaction at its highest?

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  16. When is the mass of a reaction at its lowest?

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  17. When drawing a graph to show the measuring of the mass of a reaction mixture, which variable should lie on the x-axis?

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  18. When drawing a graph to show the measuring of the mass of a reaction mixture, which variable should lie on the y-axis?

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  19. Describe the correlation for the mass-time graph as a reaction progresses.

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  20. When measuring the increased gas during a reaction, what needs to be collected?

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  21. What should the gas given off be measured with?

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  22. During the measuring of the change in volume of a reaction mixture, when should the volume of gas given off be measured?

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  23. When drawing a graph to show the volume of gas produced during a reaction, which variable should lie on the x-axis?

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  24. When drawing a graph to show the volume of gas produced during a reaction, which variable should lie on the y-axis?

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  25. Describe the correlation for the volume-time graph as a reaction progresses.

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