30 Random Questions from all GCSE Chemistry Quizzes
GCSE Chemistry Quiz
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#1. True or false - Precipitation reactions can either exothermic or endothermic.
#2. What is the name of the force that holds together ions in ionic compounds?
#3. Which of the following descriptions matches the Aᵣ of an element?
#4. Why does burning of fuel inside an internal combustion engine lead to the production of oxides of nitrogen?
#5. Why did Ernest Rutherford's experiments with gold foil demonstrate that most of atoms consists of empty space?
#6. Acids produce an excess of what when they dissolve in water?
#7. What do we use to fuel large ships and power stations?
#8. Which process do we use to separate crude oil into more useful and simpler mixtures?
#9. What evidence supports the notion that human activities are contributing to climate change?
#10. Which of the following is the correct maximum number of electrons in the first three shells?
#11. Which of the following are the main sources of drinking water in the UK?
Select all that apply:
#12. Why is a spark often needed to start a combustion reaction?
#13. Which type of reaction transfers energy to the surroundings?
#14. Which of the following descriptions matches the term empirical formula?
#15. What is the electronic configuration of boron?
#16. Which of the following descriptions matches the term molecular formula?
#17. Which of the following items would you need to perform crystallisation by heating? ? 6 items
Select all that apply:
#18. Solutions of more than pH 7 are?
#19. What is the chemical symbol for calcium?
#20. What is the formula for the polyatomic ion sulfate?
#21. Relative atomic mass used to have a different name. What was that name?
#22. Are metals usually shiny or dull in colour?
#23. What is the charge of an electron?
#24. What toxic effects does carbon monoxide have on the body?
#25. The graph shows a heating curve for substance X (red) and substance Y (blue). Is substance X a pure or impure substance?
#26. What is meant by the term empirical formula mass?
#27. What is a common issue with soot (carbon) produced during combustion?
#28. Solutions of less than pH 7 are?
#29. What is the boiling temperature of water?
#30. Calculate the relative formula mass of copper oxide (CuO) to 2 decimal places. Copper Aᵣ = 63.5, Oxygen Aᵣ = 16.
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