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GCSE AQA Chemistry Paper 1
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#1. Which of these are common properties of giant covalent materials?
#2. Why does diamond not conduct electricity?
#3. Copper can be purified using electrolysis of copper sulfate solution. For this process we use the setup in the image below. Complete the half equation for the reaction at the anode. Cu → ..... + .....
#4. Acids produce an excess of what when they dissolve in water?
#5. Relative atomic mass used to have a different name. What was that name?
#6. What is the chemical symbol for calcium?
#7. What is the chemical symbol for nitrogen?
#8. What is the formula for sodium hydroxide?
#9. Strong acids do what in water? ? two words
#10. Which of these best describes metallic bonding?
#11. This image shows the apparatus used during fractional distillation. What is function of the fractionating column?
#12. True or false - Precipitation reactions can be either exothermic or endothermic.
#13. During crystallisation, there is a risk of spitting which could cause harm. Which of the following could reduce the risk?
Select all that apply:
#14. What is the chemical symbol for lithium?
#15. What is the relative mass of an electron?
#16. What is the chemical symbol for phosphorus?
#17. Are gases fluids?
#18. Which of the following things were hypothesised by John Dalton in 1805? ? select 4 answers
Select all that apply:
#19. Complete the equation: H⁺(aq) + OH⁻(aq) → ....
Remember:
acids produce an excess of hydrogen ions
alkalis produce an excess of hydroxide ions
hydrogen ions and hydroxide ions come together to make water which is neutral.
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#20. Which of the following are weak acids?
Select all that apply:
#21. What is the name of the phase change from gas to liquid?
#22. During a neutralisation reaction which salt is formed from sulfuric acid?
#23. During electrolysis which electrode do anions and cations migrate to?
#24. Which of the following are strong acids?
Select all that apply:
#25. What is the electronic configuration of a nitrogen atom? ? you might need a periodic table to answer this question
#26. Which of the following descriptions matches the term molecular formula?
#27. Complete the following equation: MgO (s) + H₂SO₄ (aq) → .... + ....
Select all that apply:
Neutralisation reactions follow the general structure –
metal oxide acid = salt water
the acid produces hydrogen ions and the metal oxide produces oxide ions – these combine to make the water
the salt is comprised of the remaining products – the metal and the other element from the acid
in this case, the other element is chlorine
The naming convention is to put the metal first for the salt created
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#28. Which three particles are atoms composed of?
#29. What is a polymer?
#30. Which of the following describes the Plum Pudding Model of atomic structure?
#31. Which scientist proposed the Plum Pudding Model?
#32. What state of matter has particles which are close together and vibrate around fixed positions?
#33. When using inert electrodes to perform electrolysis with water acidified with sulfuric acid, which products will be produced at the anode and cathode?
#34. Are metals usually malleable or brittle?
#35. What is the chemical symbol for sulfur?
#36. Which of these is a problem with metallic models?
#37. What is the difference in concentration between pH 6 and pH 4?
#38. What is the charge of a neutron?
#39. Are non-metals usually good conductors of electricity?
#40. How could you separate a mixture of sand and salt?
#41. What is the name of the phase change from solid to liquid?
#42. What is the formula for the compound calcium nitrate which is made of calcium and nitrate ions (NO₃⁻)?
#43. If covalent bonds are very strong, then why does water have a low melting point?
#44. What is the formula for potassium hydroxide?
#45. What is the chemical symbol for oxygen?
#46. What is a solution called when it contains the maximum amount of solute that can dissolve in a solvent at a particular temperature?
#47. In which type of reaction would the temperature of a solution increase?
#48. Complete the equation: H₂SO₄(aq) + ZnO(s) → .... + ....
Select all that apply:
#49. What is the formula for the polyatomic ion hydroxide?
#50. Solutions of less than pH 7 are?
#51. Chlorine has two stable isotopes, ³⁵Cl (75.77%) and ³⁷Cl (24.23%). Calculate the Aᵣ of chlorine to 2 decimal places.
#52. Alkalis produce an excess of what when they dissolve in water?
#53. Most ionic bonds are formed between which groups?
#54. What is the approximate radius of a nucleus?
#55. Hydrogen has two stable isotopes, ¹H (abundance - 99.972%) and ²H (abundance - 0.001%). Calculate the Aᵣ of hydrogen. Answer to 3 decimal places.
#56. Covalent compounds typically form between which two types of material?
#57. Energy is transferred between the environment and reactants during a chemical reaction. What form is this energy usually in?
#58. What is the chemical symbol for sodium?
#59. Complete the equation: NaOH(aq) → Na⁺(aq) + ....
#60. What state of matter has particles which are close together and move around each other?
#61. What method can we use to separate multiple types of liquids?
#62. Which of the following was the Rutherford Model of atomic structure?
#63. What is the name of the phase change from solid to gas?
#64. What is the chemical symbol for gold?
#65. Complete the following half equation for a reaction the cathode during electrolysis of molten lead bromide. Pb²⁺ + 2e → .....
#66. Complete the following half equation for a reaction the cathode during electrolysis of molten zinc chloride. Zn²⁺ + ..... → Zn
#67. What is the symbol for relative formula mass (also known as relative molecular mass)?
#68. Which type of reaction is aerobic respiration?
#69. What is the formula for hydrochloric acid?
#70. What is the formula for nitric acid?
#71. Copper can be purified using electrolysis of copper sulfate solution. For this process we use the setup in the image below. Complete the half equation for the reaction at the cathode. Cu²⁺ + 2e →
#72. What is the chemical symbol for radium?
#73. Which of the following descriptions matches the Mᵣ of a compound?
#74. Reaction profiles are used to show the energy transfers during reactions. Which type of reaction is shown in this reaction profile?
#75. Complete the following equation describing a neutralisation reaction with a metal oxide: metal oxide + acid → .... + ....
Select all that apply:
#76. What is the chemical symbol for magnesium?
#77. Are metals usually good conductors of heat?
#78. The melting point of gallium is 29.8˚C and the boiling point is 2204˚C. What state is gallium at 25˚C?
#79. Solutions of pH 7 are?
#80. What is the chemical symbol for silver?
#81. When using inert electrodes to perform electrolysis with copper chloride solution, which products will be produced at the anode and cathode?
#82. Complete the following equation describing a reaction with a metal and an acid: metal + acid → .... + ....
Select all that apply:
#83. When using inert electrodes to perform electrolysis with molten lead bromide, which products will be produced at the anode and cathode?
#84. What is the formula for the polyatomic ion nitrate?
#85. Are metals usually good conductors of electricity?
#86. What is the symbol for relative atomic mass?
#87. Do non-metals usually have a high or low density?
#88. Which of these is a problem with dot and cross diagrams?
#89. Why is diamond hard?
#90. What the the most dense state of matter?
#91. How do sodium and chlorine atoms bond? ? you might need a periodic table to answer this question
#92. Are non-metals usually good conductors of heat?
#93. Filtration and crystallisation are used to separate which types of materials?
#94. What are negative ions called?
#95. Is water an example of a covalent compound?
#96. Oxygen is in group 6 and fluorine is in group 7. How many fluorine atoms bond with one oxygen atom?
#97. A soluble base is called?
#98. What is the chemical symbol for iodine?
#99. Why is graphite softer than diamond?
#100. Match the following description to the correct term. X is a mixture made of dissolved substances in a liquid.
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