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GCSE Chemistry Quiz
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#1. What is the chemical symbol for gold?
#2. Which description most accurately describes covalent bonding
#3. What is the formula for the compound calcium nitrate which is made of calcium and nitrate ions (NO₃⁻)?
#4. What is the approximate radius of a nucleus?
#5. Complete the following equation describing a reaction with a metal carbonate and an acid: metal carbonate + acid → .... + .... + ....
Select all that apply:
#6. Why is graphite softer than diamond?
#7. In an experiment to measure the rate of photosynthesis of pondweed in a test tube, the number of bubbles (oxygen) produced per minute is used to determine the rate of reaction. What is this experiment actually measuring?
#8. What is the boiling temperature of water?
#9. Which description best describes a compound?
#10. What is the relative mass of an electron?
#11. What is the chemical symbol for mercury?
#12. Which of these is a problem with 3D ball and stick models?
#13. Complete the following equation describing a reaction with a metal and an acid: metal + acid → .... + ....
Select all that apply:
#14. What is the formula for the polyatomic ion ammonium?
#15. What is the chemical symbol for calcium?
#16. Alkalis produce an excess of what when they dissolve in water?
#17. Calculate the relative formula mass of copper oxide (CuO) to 2 decimal places. Copper Aᵣ = 63.5, Oxygen Aᵣ = 16.
#18. What is the mass number of an element?
#19. Which type of reaction transfers energy to the surroundings?
#20. Which of these describes the term "rate of reaction"?
#21. Lead has 4 stable isotopes. ²⁰⁴Pb (abundance - 1.4%), ²⁰⁵Pb (abundance - 24.1%), ²⁰⁷Pb (abundance - 22.1%) and ²⁰⁸Pb (abundance - 52.4%). Calculate the Aᵣ of lead. Answer to 2 decimal places.
#22. What is the chemical symbol for iron?
#23. What is the chemical symbol for xenon?
#24. When a mixture of rocks, salt and water is filtered, what will be the residue?
#25. What is the chemical symbol for chlorine?
#26. If covalent bonds are very strong, then why does water have a low melting point?
#27. Which types of atoms can be found in a pure piece of gold?
Select all that apply:
#28. Are metals usually malleable or brittle?
#29. Determine the empirical formula of glucose - C₆H₁₂O₆.
#30. Which of the following are uses for paper chromatography?
Select all that apply:
#31. What is the name of the phase change from solid to gas?
#32. H₂SO₄(aq) + Na₂O(s) → .... + ....
Select all that apply:
#33. Where is most of the mass of an atom?
#34. Do non-metals usually have a high or low density?
#35. Is it possible to control the rate of reaction?
#36. Which of the following are properties of ionic compounds?
#37. What are positive ions called?
#38. What is the formula for calcium hydroxide?
#39. Which of the following was the Rutherford Model of atomic structure?
#40. Which three particles are atoms composed of?
#41. Why did Ernest Rutherford's experiments with gold foil demonstrate that most of atoms consists of empty space?
#42. Why does graphite conduct electricity?
#43. What is the chemical symbol for oxygen?
#44. During crystallisation, there is a risk of spitting which could cause harm. Which of the following could reduce the risk?
Select all that apply:
#45. Calculate the empirical formula of a compound that contains 69.94g of Fe (Aᵣ - 55.85) and 30.06g of O (Aᵣ - 12.00).
#46. What is the chemical symbol for carbon?
#47. What are negative ions called?
#48. Paper chromatography is used to separate which types of materials?
#49. What is the chemical symbol for tin?
#50. What do group one atoms do when they bond ionically with group 7 atoms?
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