AQA GCSE Chemistry Paper 1 Foundation June 2022 question paper 8462/1F

This question is about atoms.

Figure 1 represents an atom of an element.

Draw one line from each name to the correct label.

An atom of element Y has:

• an atomic number of 9

• a mass number of 19.

Give the number of electrons and the number of neutrons in this atom.

Choose answers from the box.

Table 1 shows information about two isotopes of element Z.

Suggest the identity of element Z.

Use the periodic table.

Complete the sentence.

Choose the answer from the box.

Isotopes of the same element have different mass numbers because the isotopes

This question is about elements, compounds and mixtures.

Which type of substance is hydrogen?

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The diagrams in Figure 2 represent different substances.

represent atoms of three different elements.

Use Figure 2 to answer questions 02.2 and 02.3.

Which diagram represents a mixture of compounds?

Which diagram represents a mixture of elements?

Substances can be separated from mixtures by using different methods.

Complete the sentence.

Sand can be separated from a mixture of sand and water by

A mixture of four liquids was fractionally distilled.

Figure 3 shows the apparatus used.

Table 2 shows the boiling points of the four liquids in the mixture.

Which liquid in Table 2 would distil and be collected in the beaker first?

Suggest what would happen to the temperature of the water as the water flows through the condenser.

Describe how to obtain sodium chloride crystals from sodium chloride solution by crystallisation.

This question is about acids.

A student added four metals, A, B, C and D to hydrochloric acid.

Figure 4 shows the rate of bubbling in each tube.

Use Figure 4 to answer questions 03.1 and 03.2.

Which metal is copper?

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Which metal is the most reactive?

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A metal oxide reacts with an acid to produce zinc sulfate and water.

Name the metal oxide and the acid used in this reaction.

Name of metal oxide

A student reacts an acid with an alkali in a titration.

What is the type of reaction when an acid reacts with an alkali?

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This question is about the periodic table.

Figure 6 shows an early version of the periodic table published by a scientist.

The scientist left gaps in the periodic table in Figure 6.

Each gap is represented by a question mark (?).

Give one reason why the scientist left gaps in this periodic table.

Which scientist published the periodic table in Figure 6 ?

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The modern periodic table is different from the periodic table in Figure 6.

One extra group of elements has been added.

What is the name of the extra group of elements in the modern periodic table?

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Why do the elements in Group 1 of the modern periodic table have similar chemical properties?

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Table 3 shows the melting points of the first five elements going down Group 1.

Predict value X.

Give one observation you would see when a small piece of potassium is added to water.

Table 4 shows information about the first five elements going down Group 7.

Complete Table 4.

The elements in Group 7 consist of molecules.

What is the formula of a molecule of bromine?

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A student investigated the reaction of magnesium with hydrochloric acid.

Figure 7 shows the apparatus used.

This is the method used.

1. Set up the apparatus as shown in Figure 7.

2. Cut 10 mm of magnesium ribbon.

3. Remove the stopper.

4. Add the magnesium ribbon to the conical flask.

5. Replace the stopper as quickly as possible.

6. Record the final reading on the gas syringe when the reaction has stopped.

7. Repeat steps 1 to 6 three more times.

8. Repeat steps 1 to 7 with different lengths of magnesium ribbon.

Which gas is produced when magnesium reacts with hydrochloric acid?

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What was the independent variable in the investigation?

Give one control variable in the investigation.

Table 5 shows the results for one length of magnesium ribbon.

One of the results was anomalous.

Which trial in Table 5 gave an anomalous result?

Suggest one reason for the anomalous result in Table 5.

Table 6 shows the mean volume of gas produced for each length of magnesium ribbon.

Plot the data from Table 6 on Figure 8.

Draw a line of best fit.

Complete the sentence.

As the length of the magnesium ribbon increases, the mean volume of gas produced

This question is about carbon and compounds of carbon.

Figure 9 shows diagrams that represent different structures.

Use Figure 9 to answer questions 06.1 and 06.2.

Which diagram represents graphite?

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Which diagram represents poly(ethene)?

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Figure 10 represents the structure of diamond.

How many covalent bonds does each carbon atom form in diamond?

Which is a property of diamond?

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Figure 11 shows a model of a molecule.

Complete the molecular formula of the molecule.

Molecular formula = C__ H__

Carbonic acid is a compound of carbon.

The formula of carbonic acid is H₂CO₃

Which ion is produced by carbonic acid in aqueous solution?

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Calculate the relative formula mass (M_r) of carbonic acid (H₂CO₃).

Relative atomic masses (A_r): H = 1 C = 12 O = 16

This question is about small particles.

Coarse particles, fine particles and nanoparticles are all small particles.

Which is the largest particle?

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Figure 12 shows a cubic nanoparticle.

The surface area of the cubic nanoparticle is 24 nm².

Calculate:

• the volume of the cubic nanoparticle

• the simplest surface area: volume ratio of the cubic nanoparticle.

Catalysts made of nanoparticles are often more effective than catalysts made of normal sized particles.

Complete the sentences.

Compared with normal sized particles, the surface area to volume ratio of

This means that the mass of a nanoparticle catalyst needed to have the same effect

Silver nanoparticles can be added to the material used to make socks.

Some facts about silver and bacteria are:

• silver nanoparticles are small enough to be breathed in

• silver is very expensive

• silver can kill bacteria

• bacteria can cause infections

• bacteria can break down sweat to produce unpleasant smells.

Suggest one advantage and one disadvantage of wearing socks containing silver nanoparticles.

An atom has a radius of 1 × 10⁻¹⁰ m.

A spherical nanoparticle has a radius of 1 × 10⁻⁸ m.

How many times larger is the radius of the nanoparticle than the radius of the atom?

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This question is about electrolysis.

Ionic compounds decompose when they are electrolysed.

A student electrolyses sodium sulfate solution.

Figure 13 shows the apparatus used.

Sodium sulfate solution contains:

• hydrogen ions

• hydroxide ions

• sodium ions

• sulfate ions.

Oxygen is produced at the positive electrode.

Which ions are discharged at the positive electrode to produce oxygen?

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Figure 14 shows one of the measuring cylinders during the electrolysis.

What is the volume of gas in the measuring cylinder?

Ionic compounds can be electrolysed when molten or dissolved in water.

Why can ionic compounds not be electrolysed when solid?

You should answer in terms of ions.

Table 7 shows the products of electrolysis of two molten compounds.

Complete Table 7.

The electrolysis of molten sodium chloride is used to extract sodium metal.

Why is sodium metal extracted by electrolysis instead of by reduction with carbon?

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What is the state symbol for molten sodium chloride?

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Titanium can be produced from titanium oxide by electrolysis.

The equation for the reaction is:

Calculate the percentage atom economy for the production of titanium from titanium oxide by electrolysis.

Use the equation:

Relative atomic mass (A_r): Ti = 48

Relative formula mass (M_r): TiO₂ = 80

This question is about metals and non-metals.

Figure 15 shows an outline of part of the periodic table.

Element Q is a dull solid with a melting point of 44 °C.

Element Q does not conduct electricity.

Which section of the periodic table in Figure 15 is most likely to contain element Q ?

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Element R forms ions of formula R²⁺ and R³⁺

Which section of the periodic table in Figure 15 is most likely to contain element R ?

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Give two differences between the physical properties of the elements in Group 1 and those of the transition elements.

Complete Figure 16 to show the electronic structure of an aluminium atom.

Use the periodic table.

Aluminium is a metal.

Describe how metals conduct electricity.

Answer in terms of electrons.

Name the type of bonding in compounds formed between metals and non-metals.

Magnesium oxide is a compound formed from the metal magnesium and the non-metal oxygen.

Describe what happens when a magnesium atom reacts with an oxygen atom.

You should refer to electrons in your answer.

Sodium carbonate reacts with hydrochloric acid in an exothermic reaction.

The equation for the reaction is:

A student investigated the effect of changing the mass of sodium carbonate powder on the highest temperature reached by the reaction mixture.

Plan a method to investigate the effect of changing the mass of sodium carbonate powder on the highest temperature reached.

Figure 17 shows a line of best fit drawn through the student’s results.

Determine the gradient of the line of best fit in Figure 17.

Use the equation:

Give the unit.

The initial temperature of the reaction mixture is where the line of best fit would meet the y-axis.

Determine the initial temperature of the reaction mixture.

Show your working on Figure 17.

Another student repeated the investigation but added sodium carbonate until the sodium carbonate was in excess.

Which sketch graph shows the results obtained when sodium carbonate was added until in excess?

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Figure 18 shows a reaction profile for the reaction of sodium carbonate with hydrochloric acid.

What do labels X and Y represent on Figure 18 ?

How does the reaction profile show that the reaction is exothermic?

Use Figure 18.