291 questions · 7 papers

5.1Atomic Structure & Periodic Table

5.1.1A Simple Model of the Atom

5.1.1.2Mixtures & separation techniques
Jun24·C1F 1m
04.1 — Name the method used to separate dyes in black ink
Jun24·C1F 1m
04.2 — Name the separation method shown in the diagram
Jun24·C1F 2m
04.3 — Explain why solid C separated from the mixture of C and D
Jun24·C1F 1m
04.4 — Name the separation method shown in Figure 9
Jun24·C1F 1m
04.5 — State which liquid collected first in the conical flask given boiling point data
Jun24·C1F 2m
04.6 — Match two descriptions to the correct process names
Jun24·C1F 1m
04.7 — Identify whether water temperature at K is lower, same or higher than at J in condenser
5.1.1.3Development of the model of the atom
Jun19·C1F 1m
03.5 — State what isotopes are
Nov20·C1F 1m
03.1 — Complete the sentence about why some alpha particles are deflected in the scattering experiment
Nov20·C1F 1m
03.2 — Explain why most alpha particles pass straight through the gold foil
Nov20·C1F 1m
03.3 — State one conclusion from the alpha particle scattering experiment
Nov21·C1F 1m
06.2 — Identify which model represents the plum pudding model from four diagrams
Nov21·C1F 1m
06.3 — Identify which atomic model resulted from Chadwick's experimental work
Nov21·C1F 2m
06.4 — State what is meant by isotopes in terms of subatomic particles
Jun23·C1F 1m
01.6 — Identify the correct order for the development of the model of the atom from three given models
Jun23·C1F 1m
01.7 — Name the scientist who discovered the existence of neutrons
5.1.1.4Relative electrical charges / subatomic particles
Jun19·C1F 2m
03.4 — Determine the number of protons and neutrons in one atom of argon
Nov20·C1F 2m
06.1 — Give the number of electrons and neutrons in an aluminium atom
Nov21·C1F 6m
03.2 — Describe the atomic structure of a carbon atom including subatomic particles
Jun22·C1F 2m
01.2 — State the number of electrons and neutrons in a lithium atom from a diagram
Jun23·C1F 2m
01.1 — State the number of protons and neutrons in beryllium from a diagram of the atom
Jun24·C1F 2m
01.4 — Complete a table of subatomic particles — include relative charge and mass
5.1.1.5Size and mass of atoms
Nov21·C1F 1m
03.1 — State the approximate radius of a carbon atom
Jun24·C1F 1m
01.2 — State the radius of a potassium atom
Jun24·C1F 1m
01.3 — State the name given to the number of protons in an atom
5.1.1.6Relative atomic mass
Nov21·C1F 3m
06.5 — Calculate the relative atomic mass of potassium from isotope abundance data
Jun24·C1F 1m
01.7 — Identify the correct formula for calculating Ar of potassium from isotope abundance data
5.1.1.7Electronic structure
Jun18·C1F 2m
06.1 — State one difference and one similarity in the electronic structures of sodium and chlorine
Jun19·C1F 1m
03.6 — Write the electronic structure of an argon atom

5.1.2The Periodic Table

5.1.2.1The periodic table — groups and periods
Jun18·C1F 1m
04.1 — Identify which element from a periodic table diagram belongs to a specific group
5.1.2.2Development of the periodic table
Jun19·C1F 1m
03.1 — State the property used to arrange elements in early periodic tables
Jun19·C1F 1m
03.2 — Complete the sentence about why Mendeleev left gaps in his periodic table
Nov20·C1F 1m
05.1 — Identify the property used to arrange elements in early periodic tables
Nov20·C1F 1m
05.2 — Suggest why Mendeleev placed iodine after tellurium in his periodic table
Nov21·C1F 1m
06.1 — Identify which group of elements had not been discovered when Mendeleev published his periodic table
5.1.2.3Metals and non-metals
Nov20·C1F 2m
04.1 — Determine the percentage of elements in the periodic table that are metals [Figure 5 — print if needed]
Nov20·C1F 2m
04.2 — Give two physical properties of metals
Nov21·C1F 1m
01.1 — Identify which types of element react when magnesium reacts with chlorine
5.1.2.4Group 0 — Noble gases
Jun19·C1F 1m
03.3 — Identify the name of the group that contains argon
Jun19·C1F 1m
03.7 — Explain why argon is unreactive
Jun22·C1F 2m
04.4 — Explain why no product is formed when magnesium and argon are heated together
5.1.2.5Group 1 — Alkali metals
Jun19·C1F 4m
04.3 — Complete sentences describing the colours seen during the reaction of sodium with chlorine
Jun19·C1F 1m
04.5 — Complete the sentence about why potassium is more reactive than sodium
Jun19·C1F 2m
04.6 — Compare the size of a potassium atom with a sodium atom and give a reason
Nov20·C1F 2m
05.4 — Complete a bar graph of melting points of Group 1 metals [Figure 8 — print if needed]
Nov20·C1F 2m
05.6 — Give two reasons why potassium is more reactive than lithium
Nov21·C1F 1m
04.1 — State the name of Group 1 elements
Nov21·C1F 1m
04.2 — Read the melting point of sodium from a graph of Group 1 melting points [Figure 5 — print if needed]
Nov21·C1F 4m
04.5 — Compare observations when sodium reacts with water versus when potassium reacts with water
Jun22·C1F 1m
01.1 — State what the Group 1 elements are known as
Jun22·C1F 1m
01.5 — Read the melting point of caesium from a bar chart of Group 1 melting points [Figure 2 — print if needed]
Jun22·C1F 1m
01.6 — Draw a bar for potassium on a bar chart of Group 1 melting points [Figure 2 — print if needed]
Jun22·C1F 3m
01.7 — Describe the trend in melting points of Group 1 elements from the bar chart [Figure 2 on prev page — print if needed]
Jun22·C1F 1m
01.9 — Complete the sentence about the reactivity of potassium compared to sodium
Jun24·C1F 1m
01.1 — State the name given to Group 1 elements
Jun24·C1F 1m
01.6 — Predict the melting point of potassium from a graph of Group 1 melting points
5.1.2.6Group 7 — Halogens
Jun18·C1F 1m
02.1 — Identify which group of the periodic table contains the halogens
Jun18·C1F 2m
02.3 — Complete the word equation for chlorine reacting with potassium bromide solution
Jun18·C1F 1m
02.4 — Identify the type of reaction when chlorine displaces bromine from potassium bromide solution
Jun18·C1F 1m
02.5 — Complete the sentence about the reactivity of chlorine compared to bromine
Jun18·C1F 1m
02.6 — Compare the size of a chlorine atom with a bromine atom
Jun18·C1F 1m
02.7 — Give a reason for the difference in size between chlorine and bromine atoms
Nov20·C1F 1m
03.4 — State what Group 7 elements are known as
Nov20·C1F 1m
03.5 — Identify which halogen is most reactive with gold from experimental data

5.2Bonding, Structure & Properties

5.2.1Chemical Bonds

5.2.1.2Ionic bonding
Jun18·C1F 1m
01.1 — Identify the type of bonding in calcium oxide from a diagram
Jun18·C1F 4m
06.2 — Describe what happens when a sodium atom reacts with a chlorine atom in terms of electron transfer
Jun19·C1F 2m
04.4 — Write the formulae of the ions present in sodium chloride
Nov20·C1F 3m
05.5 — Describe what happens to a lithium atom and a chlorine atom when they react in terms of electrons
Jun22·C1F 1m
01.3 — State the relative charge on a lithium ion
Jun23·C1F 1m
01.2 — State the relative charge on a beryllium ion
Jun23·C1F 1m
03.1 — Identify which group of elements does not form ions
Jun23·C1F 4m
03.2 — Describe what happens to electrons when potassium reacts with chlorine to form KCl
Jun24·C1F 1m
01.5 — State the charge on a potassium ion from its electron configuration diagram
Jun24·C1F 6m
08 — Compare the structure and bonding of sodium chloride and oxygen — 6-mark extended response
5.2.1.3Ionic compounds
Nov20·C1F 1m
01.5 — Determine the formula of copper oxide given the charges of its ions
Nov21·C1F 1m
07.5 — Determine the formula for zinc nitrate given the charges of its ions
Jun22·C1F 1m
06.1 — State the formula of potassium sulfate given the charges of its ions
Jun23·C1F 1m
03.3 — Identify the diagram representing the arrangement of ions in solid potassium chloride
Jun23·C1F 1m
04.3 — Determine the formula of copper bromide from given ion charges
5.2.1.4Covalent bonding
Jun18·C1F 2m
02.2 — Complete the dot-and-cross diagram for a fluorine molecule [Figure 8 — print if needed]
Jun19·C1F 2m
05.4 — Complete the dot-and-cross diagram for a water molecule [Figure 5 — print if needed]
Jun19·C1F 1m
05.5 — Complete the sentence about the type of bonding between atoms of oxygen
Nov20·C1F 1m
07.1 — Suggest one limitation of using a ball and stick model for a water molecule
Jun22·C1F 2m
02.1 — Complete the dot-and-cross diagram for hydrogen chloride [Figure 4 — print if needed]
Jun23·C1F 2m
03.4 — Complete the dot-and-cross diagram for a water molecule
Jun24·C1F 2m
02.1 — Complete a dot-and-cross diagram for a methane molecule

5.2.2How Bonding & Structure Relate to Properties

5.2.2.1Three states of matter
Nov20·C1F 1m
05.3 — State the physical state of lithium at 100°C using a table of melting point data
Jun22·C1F 2m
01.4 — Match stages of heating and cooling lithium to the correct physical changes
Jun22·C1F 1m
01.8 — State the physical state of sodium at 150°C given melting and boiling point data
Jun23·C1F 1m
01.3 — Identify the state of matter represented by a particle diagram
Jun23·C1F 1m
01.4 — Name the process when a liquid changes to a gas, using a state diagram
Jun23·C1F 1m
01.5 — Describe how state B can be changed into state C using Figure 3
5.2.2.2State symbols
Jun18·C1F 1m
03.3 — State what the state symbol (aq) means
Jun19·C1F 1m
05.1 — State the state symbol for oxygen at room temperature
Jun19·C1F 1m
07.1 — Give the state symbol for ammonium nitrate solution
Nov21·C1F 1m
07.3 — State the state symbol for nitric acid
Jun23·C1F 1m
06.5 — Identify the state symbol (x) in the equation CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O(x)
Jun24·C1F 1m
05.2 — Identify the state symbol for molten magnesium chloride
5.2.2.3Properties of ionic compounds
Jun18·C1F 1m
01.8 — Complete the sentence about when sodium chloride can conduct electricity
Jun18·C1F 2m
01.9 — Match statements to reasons about conductivity of solid and molten NaCl
Nov20·C1F 1m
04.4 — Identify what holds particles together in sodium chloride
Nov20·C1F 2m
04.5 — Give two ways sodium chloride can be made to conduct electricity
Jun22·C1F 3m
04.6 — Explain why sodium chloride conducts electricity when molten but not when solid
5.2.2.4Properties of small molecules
Jun18·C1F 1m
01.2 — Identify the type of particle shown in a diagram of methane
Jun18·C1F 3m
02.9 — Explain why fluorine is a gas at room temperature [Figure 9 on same page]
Jun19·C1F 2m
05.6 — Compare the boiling points of sulfur and oxygen and explain using intermolecular forces
Nov20·C1F 1m
07.2 — Complete the sentence about why ice has a low melting point
Nov20·C1F 1m
07.3 — State the molecular formula of a molecule shown in a structural diagram [Figure 13 — print if needed]
5.2.2.5Polymers
Jun22·C1F 1m
03.6 — Identify what holds the atoms together in a polymer chain
Jun22·C1F 1m
03.7 — Complete the sentence about what holds polymer chains together
Jun23·C1F 1m
03.6 — State what holds polymer molecules together
Jun23·C1F 3m
03.7 — Describe the trend shown in a graph of polymer melting point vs molecule length
5.2.2.6Giant covalent structures
Nov20·C1F 2m
07.6 — Name two other substances with giant covalent structures
Jun22·C1F 1m
03.1 — Identify the type of structure of silicon dioxide
Jun22·C1F 1m
03.2 — State the number of bonds formed by each silicon atom in silicon dioxide
Jun23·C1F 1m
03.5 — Determine the ratio of Si to O atoms in silica from a structural diagram
5.2.2.7Properties of metals and alloys
Jun22·C1F 3m
03.8 — Calculate the percentage of copper atoms in a magnesium alloy [Figure 9 — print if needed]
Jun22·C1F 3m
03.9 — Explain why the magnesium alloy is harder than pure magnesium
Jun24·C1F 2m
06.1 — Give two conclusions from a graph of mass of copper produced 1900–2010
Jun24·C1F 3m
06.2 — Explain why an alloy of copper and zinc is harder than pure copper
5.2.2.8Metals as conductors
Jun18·C1F 1m
01.6 — Complete the sentence about the electrical conductivity of copper as a solid
Jun18·C1F 1m
01.7 — Complete the sentence about why copper can conduct electricity
Jun22·C1F 2m
04.7 — Explain why sodium metal conducts electricity when solid
Jun23·C1F 1m
04.1 — State which particles carry electrical charge through the metal wire

5.2.3Structure & Bonding of Carbon

5.2.3.1Diamond
Nov20·C1F 1m
07.4 — State the number of bonds formed by each carbon atom in diamond
Nov20·C1F 2m
07.5 — Give two physical properties of diamond
Jun24·C1F 1m
02.2 — Identify the diagram representing the structure of diamond
5.2.3.2Graphite
Jun18·C1F 1m
01.4 — Identify the type of bond labelled A in a diagram of graphite
Jun18·C1F 1m
01.5 — State how many electrons one carbon atom uses to form one bond in graphite
Nov21·C1F 1m
03.3 — State how many bonds each carbon atom forms in graphite
Nov21·C1F 1m
03.4 — Identify the type of bonds holding carbon atoms together in graphite
Nov21·C1F 1m
03.5 — Suggest why graphite can be used as a lubricant using a structural diagram
Jun24·C1F 1m
02.3 — State how many covalent bonds each carbon atom forms in graphite
Jun24·C1F 1m
02.4 — Identify which particles carry electrical charge through graphite
5.2.3.3Graphene and fullerenes
Jun18·C1F 1m
01.3 — Complete the sentence about the structure of C60
Nov21·C1F 2m
03.6 — Match two structural diagrams to the correct forms of carbon
Jun22·C1F 1m
03.3 — Complete the sentence about the shape that fullerene structures are based on
Jun22·C1F 1m
03.4 — Complete the sentence about the atoms that make up the fullerene shown
Jun22·C1F 1m
03.5 — State what the fullerene shown in Figure 7 is used for
Jun24·C1F 1m
02.5 — State where fullerenes are used
Jun24·C1F 2m
02.6 — Describe the structure of the fullerene shown in Figure 4

5.3Quantitative Chemistry

5.3.1Chemical Measurements & Conservation of Mass

5.3.1.1Conservation of mass and balanced equations
Jun18·C1F 1m
02.8 — Balance the equation for fluorine reacting with chlorine
Jun19·C1F 1m
04.1 — Balance the equation for sodium reacting with chlorine
Jun19·C1F 1m
04.2 — Calculate the mass of chlorine that reacted given data about sodium and sodium chloride
Nov20·C1F 1m
03.6 — Calculate the mass of chlorine that reacts with gold using conservation of mass
Nov20·C1F 1m
04.3 — Balance the equation for sodium reacting with chlorine
Nov21·C1F 1m
01.2 — Write the word equation for magnesium reacting with chlorine
Nov21·C1F 1m
01.4 — State what mass of magnesium chloride is produced when 1.0 g magnesium reacts with chlorine
Nov21·C1F 1m
04.3 — Balance the equation for sodium reacting with water
Jun22·C1F 1m
02.3 — Calculate the mass of one product when given masses of reactants and the other product
Jun22·C1F 1m
04.1 — Balance the equation for magnesium reacting with oxygen
Jun23·C1F 1m
05.5 — Balance the equation for the reaction of TiCl₄ with sodium
Jun23·C1F 1m
05.6 — Calculate the mass of carbon dioxide produced in the copper oxide + carbon reaction
Jun24·C1F 1m
05.5 — Calculate the mass of iron oxide that reacts with 0.72 g of magnesium using conservation of mass
5.3.1.2Relative formula mass
Jun18·C1F 1m
04.5 — Read the mass of Group 2 carbonate from a graph [Figure 10 — print if needed]
Jun18·C1F 2m
04.6 — Calculate the mass of Group 2 carbonate needed to produce 24 dm³ of gas [Figure 10 on prev page — print if needed]
Jun18·C1F 4m
04.8 — Calculate the relative atomic mass of metal X in XCO3 and name the metal
Jun19·C1F 1m
05.2 — Read the percentage by mass of calcium in calcium carbonate from a pie chart [Figure 4 — print if needed]
Nov20·C1F 2m
03.7 — Calculate the relative formula mass of gold chloride AuCl3
Nov21·C1F 2m
01.5 — Calculate the percentage mass of magnesium in magnesium oxide
Nov21·C1F 2m
04.4 — Calculate the relative formula mass of sodium hydroxide
Jun22·C1F 2m
04.3 — Calculate the relative formula mass of magnesium fluoride
Jun23·C1F 2m
07.2 — Calculate the relative formula mass (Mr) of sulfuric acid (H₂SO₄)
Jun23·C1F 4m
07.3 — Calculate the percentage by mass of oxygen in lithium sulfate (Li₂SO₄) to 2 s.f.
Jun24·C1F 4m
06.3 — Calculate the mass of copper in a 5.25 g alloy containing 13.5% zinc — give to 3 s.f.
5.3.1.3Mass changes when reactant/product is a gas
Jun19·C1F 3m
05.3 — Calculate the mean mass of solid after heating sodium nitrate and give to 3 significant figures
Nov20·C1F 6m
08 — Plan a method to test a hypothesis about metal carbonates and CO2 production
Jun23·C1F 2m
05.7 — Explain why the mass of contents in the crucible changed during the experiment
Jun24·C1F 3m
07.4 — Plot data from thermal decomposition of copper carbonate and draw line of best fit
Jun24·C1F 1m
07.5 — Explain why the mass decreases when copper carbonate is thermally decomposed
5.3.1.4Chemical measurements (experimental skills)
Jun18·C1F 4m
04.7 — Identify two mistakes in a student's gradient calculation and calculate the correct gradient [Figure 11 — print if needed]
Nov21·C1F 1m
01.3 — Identify the apparatus used to measure the mass of 1.0 g of magnesium
Nov21·C1F 1m
01.6 — Identify the most likely reason for an anomalous result when heating magnesium carbonate
Nov21·C1F 4m
05.4 — Determine the gradient of a line on a graph of temperature change vs mass of zinc [Figure 10 — print if needed]
Jun22·C1F 1m
04.2 — Suggest one safety precaution when heating magnesium and oxygen

5.3.2Use of Amount of Substance

5.3.2.5Concentration of solutions
Jun18·C1F 3m
05.5 — Calculate the mass of solid CuCl2 used in each experiment given concentration and volume data
Jun19·C1F 3m
06.5 — Calculate the concentration of hydrochloric acid given mass and volume data
Nov20·C1F 2m
02.7 — Calculate the mass of copper sulfate in 25 cm³ given data about 100 cm³
Nov21·C1F 2m
02.6 — Calculate the mass of copper chloride in 40.0 cm³ given data about 500 cm³
Jun22·C1F 3m
06.5 — Calculate the mass of potassium sulfate needed to make 1.0 dm³ of solution
Jun23·C1F 3m
07.4 — Calculate the concentration of lithium sulfate solution in g/dm³
Jun24·C1F 3m
05.6 — Calculate the mass of MgCl₂ in 30 cm³ given 180 g/dm³ concentration

5.4Chemical Changes

5.4.1Reactivity of Metals

5.4.1.1Metal oxides
Jun18·C1F 2m
04.2 — Name the two products when calcium carbonate is heated
Jun18·C1F 1m
04.3 — Identify the type of reaction when a compound breaks down on heating
5.4.1.2The reactivity series
Jun18·C1F 1m
05.2 — State what the production of copper at the cathode tells you about the reactivity of copper
Jun19·C1F 1m
06.1 — Identify the correct order of reactivity of four metals from experimental results [Figure 7 — print if needed]
Jun19·C1F 2m
06.2 — Name two variables that must be kept constant in the metals with acid experiment
Jun19·C1F 1m
06.3 — Identify the independent variable in the metals with acid experiment
Jun19·C1F 2m
06.4 — Predict the reactivity of beryllium compared with magnesium using the periodic table
Nov20·C1F 2m
02.1 — Determine the temperature change when metal X is added to copper sulfate [Figure 2 — print if needed]
Nov20·C1F 2m
02.2 — Give two variables that must be kept constant in the metals with copper sulfate investigation
Nov20·C1F 3m
02.3 — Calculate the mean temperature change for metal Y, ignoring the anomalous result
Nov20·C1F 2m
02.4 — Determine the position of an unknown metal in the reactivity series from experimental data
Nov20·C1F 1m
02.5 — State what happens to the temperature when silver is added to copper sulfate solution
Nov20·C1F 1m
02.6 — Suggest why the student should not add potassium to copper sulfate solution
Nov21·C1F 3m
05.1 — Give three improvements to a flawed zinc and copper sulfate investigation
Nov21·C1F 1m
05.2 — Read the volume of copper sulfate solution from a measuring cylinder diagram [Figure 8 — print if needed]
Nov21·C1F 2m
05.5 — Suggest why the student should not use more than 10 g of zinc [Figure 10 on prev page — print if needed]
Jun22·C1F 6m
07 — Plan an investigation to find the order of reactivity of three metals using temperature change with hydrochloric acid
Jun23·C1F 1m
02.1 — Identify the piece of equipment labelled X in the apparatus diagram
Jun23·C1F 1m
02.2 — Name the best equipment to measure volumes of solution
Jun23·C1F 2m
02.3 — Calculate mean temperature increase (value Y) from a table of results
Jun23·C1F 2m
02.4 — Calculate the temperature increase when a different mass of magnesium is used
Jun23·C1F 1m
02.6 — Explain why copper does not displace zinc from zinc sulfate solution
Jun24·C1F 1m
03.1 — Identify the type of variable represented by mass of zinc in the investigation
Jun24·C1F 1m
03.2 — Name the salt produced when zinc reacts with copper sulfate solution
Jun24·C1F 2m
03.3 — Give two observations when zinc reacts with copper sulfate solution (other than temperature change)
Jun24·C1F 2m
03.4 — Complete a table — read highest temperature from a thermometer diagram and calculate temperature increase
Jun24·C1F 2m
03.5 — Calculate the mean temperature increase value B from a results table
Jun24·C1F 1m
03.6 — State the range of temperature increase for the 2.0 g zinc experiment
Jun24·C1F 2m
03.7 — Identify the anomalous result for 3.0 g zinc and suggest a reason
Jun24·C1F 3m
05.4 — State the order of reactivity of Cu, Mg and Fe and give two reasons using the displacement experiment data
5.4.1.3Extraction of metals and reduction
Nov20·C1F 1m
06.2 — State what is meant by the term reduction
Jun22·C1F 2m
04.5 — Match two metals to their extraction methods using a reactivity series [Figure 10 on prev page — print if needed]
Jun23·C1F 1m
05.3 — Suggest why the extraction of titanium from titanium chloride is carried out in an inert atmosphere
Jun23·C1F 1m
05.4 — Identify the gas used for the inert atmosphere in titanium extraction
Jun23·C1F 2m
05.8 — State what happens to copper oxide in the reaction and give a reason

5.4.2Reactions of Acids

5.4.2.1Reactions of acids with metals
Nov20·C1F 1m
01.2 — Identify which acid reacts with zinc to produce zinc chloride
Nov20·C1F 1m
01.3 — Identify the type of substance that zinc chloride is
Jun24·C1F 1m
05.1 — Identify which gas is produced when magnesium reacts with hydrochloric acid
5.4.2.2Neutralisation of acids and salt production
Jun18·C1F 2m
03.2 — Name the acid and metal oxide used to produce zinc nitrate
Jun19·C1F 1m
07.2 — State the formula of nitric acid
Nov20·C1F 1m
01.6 — Suggest how to speed up the reaction between an acid and copper oxide
Nov21·C1F 2m
07.4 — Give two observations when zinc carbonate is added to nitric acid until in excess
Jun22·C1F 1m
02.2 — Complete the word equation for hydrochloric acid reacting with sodium hydroxide
Jun22·C1F 3m
05.1 — Give three observations when excess copper carbonate is added to sulfuric acid
Jun23·C1F 6m
06.6 — Describe a method to investigate volume of CO₂ produced from different masses of CaCO₃ — 6-mark extended response
Jun23·C1F 1m
07.1 — State the type of reaction when lithium hydroxide reacts with sulfuric acid
5.4.2.3Soluble salts
Jun18·C1F 6m
07 — Explain all improvements needed to a student's flawed method to produce copper sulfate crystals
Jun19·C1F 1m
02.1 — Identify which acid should be used to make copper chloride crystals
Jun19·C1F 1m
02.2 — Suggest how the student would know that excess copper oxide has been added
Jun19·C1F 2m
02.3 — Put four stages for making copper chloride crystals in the correct order
Nov20·C1F 1m
01.7 — Complete the sentence about why excess copper oxide is added during salt preparation
Nov20·C1F 1m
01.8 — Identify the apparatus used to separate an insoluble solid from a liquid
Nov20·C1F 1m
01.9 — State the process used to produce crystals of a salt from a salt solution
Nov21·C1F 6m
07.6 — Plan a method to produce pure dry copper chloride from an acid and a metal oxide
Jun22·C1F 1m
05.2 — State how excess copper carbonate can be removed from the solution
Jun22·C1F 3m
05.5 — Determine the mass of ammonium nitrate that crystallises on cooling [Figure 13 on prev page — print if needed]
Jun24·C1F 1m
07.1 — State the formula of the acid used to prepare copper sulfate from copper carbonate
Jun24·C1F 1m
07.2 — Explain why excess copper carbonate is used in stage 1
Jun24·C1F 2m
07.3 — Describe how to produce copper sulfate crystals from copper sulfate solution
5.4.2.4The pH scale and neutralisation
Jun18·C1F 1m
03.1 — Identify which ion is found in all acids
Jun18·C1F 1m
03.4 — Suggest a pH value after adding hydrochloric acid to a solution of pH 8
Jun18·C1F 4m
03.5 — Describe a method using an indicator to identify three solids from their properties
Jun19·C1F 2m
07.3 — State the colour of universal indicator in nitric acid and in ammonia solution
Jun19·C1F 1m
07.4 — Identify which row shows the correct pH change as nitric acid is added to ammonia solution
Nov20·C1F 1m
01.1 — State the pH of sulfuric acid
Nov20·C1F 1m
01.4 — Identify which compound in a list is an alkali
Nov21·C1F 1m
07.1 — Identify the colour change when nitric acid is added to universal indicator and water
Nov21·C1F 1m
07.2 — State what happens to the pH of water when nitric acid is added
Jun22·C1F 2m
02.6 — Identify which two ions are present in sodium hydroxide solution
Jun22·C1F 1m
05.3 — State the pH of the solution at the end of the reaction
Jun23·C1F 1m
06.1 — Identify which ion makes a solution of carbon dioxide in water acidic
Jun23·C1F 2m
06.2 — Name an indicator to test if the solution is acidic and give the result
Jun23·C1F 1m
06.3 — Describe how the solubility of carbon dioxide changes as water temperature increases
Jun23·C1F 1m
06.4 — Explain how pH of the carbon dioxide solution changes as temperature increases

5.4.3Electrolysis

5.4.3.1The process of electrolysis
Nov20·C1F 3m
06.4 — State the free moving charged particles in three different conductors
Nov21·C1F 1m
02.1 — Complete the sentence about when copper chloride can conduct electricity
Nov21·C1F 1m
02.2 — Explain why negative ions move to the positive electrode during electrolysis
Jun23·C1F 2m
04.4 — Explain why copper ions move to the negative electrode
5.4.3.2Electrolysis of molten ionic compounds
Jun19·C1F 2m
02.4 — State the products at each electrode when molten copper chloride is electrolysed
Jun24·C1F 2m
05.3 — Name the product at each electrode when molten MgCl₂ is electrolysed
5.4.3.3Using electrolysis to extract metals
Jun19·C1F 2m
02.6 — Complete the sentence about the source material used in the extraction of aluminium
Nov20·C1F 3m
06.3 — Explain why the carbon electrodes in aluminium extraction must be continually replaced
Jun23·C1F 1m
05.1 — Complete the sentence — explain why aluminium extraction is expensive
Jun23·C1F 1m
05.2 — State which gas is produced when oxygen reacts with the carbon electrodes in aluminium extraction
5.4.3.4Electrolysis of aqueous solutions
Jun18·C1F 1m
05.1 — Identify which gas is produced at the positive electrode during electrolysis of copper chloride solution
Jun18·C1F 1m
05.3 — Determine the mean mass of copper produced after 3 minutes from a results table
Jun18·C1F 2m
05.4 — Calculate the mass of copper produced in Experiment 2 after 5 minutes
Jun19·C1F 3m
02.5 — Calculate the gradient of a line from a graph [Figure 3 — print if needed]
Nov21·C1F 1m
02.3 — Identify where H⁺ and OH⁻ ions come from in electrolysis of copper chloride solution
Nov21·C1F 1m
02.4 — Identify which ion produces a metal at the negative electrode
Nov21·C1F 2m
02.5 — Describe what is seen at each electrode during electrolysis of copper chloride solution
Jun22·C1F 1m
06.2 — Read the volumes of hydrogen and oxygen collected in an electrolysis experiment [Figure 14 — print if needed]
Jun22·C1F 2m
06.3 — Explain how the volumes of gases collected support a hypothesis about the formula of water
Jun22·C1F 1m
06.4 — Calculate the uncertainty in oxygen volume measurements from repeated results
Jun23·C1F 2m
04.2 — Complete the word equation for the breakdown of a water molecule by electrolysis
Jun23·C1F 1m
04.5 — Complete the sentence — describe what happens to copper ions at the negative electrode
Jun23·C1F 1m
04.6 — State what happens to the mass of the negative electrode during electrolysis
Jun23·C1F 1m
04.7 — State the product at the positive electrode when copper bromide solution is electrolysed

5.5Energy Changes

5.5.1Exothermic and Endothermic Reactions

5.5.1.1Energy transfer during reactions
Jun18·C1F 1m
04.4 — Identify the type of reaction based on its energy transfer
Jun19·C1F 1m
01.1 — Identify which item in a list uses an endothermic reaction
Jun19·C1F 1m
01.4 — Complete the sentence about the relationship between bond breaking and bond making energy
Jun19·C1F 2m
01.6 — Read the temperature from a thermometer diagram and calculate the temperature change [Figure 2 — print if needed]
Jun22·C1F 1m
02.4 — Read the temperature from a thermometer diagram [Figure 5 — print if needed]
Jun22·C1F 1m
02.5 — State the type of reaction when the temperature of a mixture increases
Jun23·C1F 1m
02.5 — Name the type of reaction that causes the temperature of a mixture to increase
5.5.1.2Reaction profiles
Jun18·C1F 2m
06.3 — Complete the reaction profile diagram for the reaction between sodium and chlorine [Figure 14 — print if needed]
Jun19·C1F 1m
01.2 — Identify which letter on a reaction profile diagram represents activation energy [Figure 1 on prev page — print if needed]
Jun19·C1F 1m
01.3 — Identify which letter on a reaction profile diagram represents the overall energy change [Figure 1 on prev page — print if needed]
Nov21·C1F 1m
05.3 — Identify the type of reaction shown by a reaction profile diagram
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