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Edexcel GCSE Chemistry

Topic questions Bonding, structure and the properties of matter Metallic bonding

Metallic bonding

5 questions · 51 marks · about 55 minutes

Metallic bonding questions

TopicMetallic bonding

Edexcel 1CH0 Metallic bonding 5 questions

Paper 1 June 2025 Foundation tier, Question 9 11 marks

Also involves Hazard symbols and risk assessment

Silver nitrate and potassium chloride are ionic compounds that are soluble in water.

(a)

When potassium chloride solution is added to a solution of silver nitrate, a white precipitate forms.

(a)(i)

Complete the equation for this reaction, including the missing state symbol.

Question 9, shown as an image
[2]
Reveal mark scheme Mark scheme for question 9(a)(i)
(a)(ii)

Give the name of the white precipitate that forms.

[1]
Reveal mark scheme Mark scheme for question 9(a)(ii)
(a)(iii)

State and explain how the white precipitate can be separated from the reaction mixture.

[3]
Reveal mark scheme Mark scheme for question 9(a)(iii)
(b)

Silver nitrate solution conducts electricity. Solid silver also conducts electricity.

Describe how silver nitrate solution conducts electricity and how solid silver conducts electricity.

[3]
Reveal mark scheme Mark scheme for question 9(b)
(c)

A bottle containing an unknown solution is labelled with the two hazard symbols shown in Figure 16.

Figure for question 9
(c)(i)

What are the meanings of these two symbols?

Question 9, shown as an image
[1]
Reveal mark scheme Mark scheme for question 9(c)(i)
(c)(ii)

State a safety step that should be taken when using the unknown solution.

[1]
Reveal mark scheme Mark scheme for question 9(c)(ii)

Paper 1 June 2025 Higher tier, Question 3 9 marks

Silver nitrate and potassium chloride are ionic compounds that are soluble in water.

(a)

When potassium chloride solution is added to a solution of silver nitrate, a white precipitate forms.

(a)(i)

Complete the equation for this reaction, including the missing state symbol.

Question 3, shown as an image
[2]
Reveal mark scheme Mark scheme for question 3(a)(i)
(a)(ii)

Give the name of the white precipitate that forms.

[1]
Reveal mark scheme Mark scheme for question 3(a)(ii)
(a)(iii)

State and explain how the white precipitate can be separated from the reaction mixture.

[3]
Reveal mark scheme Mark scheme for question 3(a)(iii)
(b)

Silver nitrate solution conducts electricity. Solid silver also conducts electricity.

Describe how silver nitrate solution conducts electricity and how solid silver conducts electricity.

[3]
Reveal mark scheme Mark scheme for question 3(b)

Paper 1 June 2022 Foundation tier, Question 9 13 marks

Magnesium carbonate has the formula MgCO3.

(a)

Magnesium carbonate contains Mg2+ and CO32− ions.

(a)(i)

The atomic number of magnesium is 12.

What is the electronic configuration of the Mg2+ ion?

Question 9, shown as an image
[1]
Reveal mark scheme Mark scheme for question 9(a)(i)
(a)(ii)

Explain why solid magnesium carbonate cannot conduct electricity but solid magnesium can.

[3]
Reveal mark scheme Mark scheme for question 9(a)(ii)
(b)

Calculate the percentage by mass of magnesium in magnesium carbonate, MgCO3.

(relative atomic masses: C = 12.0, O = 16.0, Mg = 24.0)

[3]
Reveal mark scheme Mark scheme for question 9(b)
(c)

*(c) A student has two separate test tubes containing sulfuric acid.

The student adds a spatula measure of magnesium carbonate, MgCO3, to the first test tube and a piece of magnesium to the second test tube.

Explain what the student would see in each test tube and the tests that they should carry out to identify the gases produced.

Your answer should include word equations for the reactions that would take place.

[6]
Reveal mark scheme Mark scheme for question 9(c)

Paper 1 June 2022 Higher tier, Question 3 8 marks

Magnesium carbonate has the formula MgCO3.

(a)

Magnesium carbonate contains Mg2+ and CO32− ions.

(a)(i)

The atomic number of magnesium is 12.

What is the electronic configuration of the Mg2+ ion?

Question 3, shown as an image
[1]
Reveal mark scheme Mark scheme for question 3(a)(i)
(a)(ii)

Explain why solid magnesium carbonate cannot conduct electricity but solid magnesium can.

[3]
Reveal mark scheme Mark scheme for question 3(a)(ii)
(b)

Calculate the percentage by mass of magnesium in magnesium carbonate, MgCO3.

(relative atomic masses: C = 12.0, O = 16.0, Mg = 24.0)

percentage by mass of magnesium =........

[3]
Reveal mark scheme Mark scheme for question 3(b)
(c)

Magnesium carbonate reacts with dilute hydrochloric acid. Water and carbon dioxide are two of the products of the reaction.

Complete the balanced equation for this reaction.

Question 3, shown as an image
[1]
Reveal mark scheme Mark scheme for question 3(c)

Paper 1 November 2020 Foundation tier, Question 4 10 marks

(a)

In the 19th century, Mendeleev arranged the elements known at the time to form his periodic table. Mendeleev’s periodic table is different from the modern periodic table.

State one difference between Mendeleev’s periodic table and the modern periodic table.

[1]
Reveal mark scheme Mark scheme for question 4(a)
(b)

Aluminium oxide reacts with hydrochloric acid to form a salt and water.

(b)(i)

State the name of the salt formed.

[1]
Reveal mark scheme Mark scheme for question 4(b)(i)
(b)(ii)

In this reaction aluminium oxide is a base.

State the type of reaction that takes place when an acid reacts with a base.

[1]
Reveal mark scheme Mark scheme for question 4(b)(ii)
(c)

Gallium, Ga, is in the same group of the modern periodic table as aluminium.

The formula of aluminium oxide is Al2O3.

(c)(i)

Predict the formula of gallium oxide.

[1]
Reveal mark scheme Mark scheme for question 4(c)(i)
(c)(ii)

Gallium oxide has a very high melting point. Gallium oxide does not conduct electricity when solid but does conduct electricity when molten.

What type of substance is gallium oxide?

Question 4, shown as an image
[1]
Reveal mark scheme Mark scheme for question 4(c)(ii)
(d)

Figure 5 shows the changes of state for gallium and the arrangement of particles in liquid gallium.

Figure for question 4
(d)(i)

Complete the boxes for solid gallium and gaseous gallium by drawing the arrangement of the particles in each of these physical states.

[2]
Reveal mark scheme Mark scheme for question 4(d)(i)
(d)(ii)

Give the name of the change of state labelled Y in Figure 5.

[1]
Reveal mark scheme Mark scheme for question 4(d)(ii)
(e)

Gallium metal is a conductor of electricity.

Explain how metals conduct electricity.

[2]
Reveal mark scheme Mark scheme for question 4(e)

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