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How do metals and non-metals combine to form compounds?: OCR GCSE Combined Science B questions

Every OCR GCSE Combined Science B exam question on C2.3 How do metals and non-metals combine to form compounds?, 2018–2025, with its mark scheme and examiner’s report.

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2,688 questions

  1. Q3(c)(ii)

    June 2025 · Chemistry Paper 2 Foundation

    3 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 3

  2. Q1(a)(iii)

    June 2025 · Combined Science Paper 4 Foundation

    3 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 1

  3. Q6(b)

    June 2025 · Chemistry Paper 6 Higher

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 6

  4. Q1(a)(ii)

    June 2024 · Chemistry Paper 2 Foundation

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗

  5. Q1(b)

    June 2024 · Chemistry Paper 2 Foundation

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗

  6. Q1(c)

    June 2024 · Chemistry Paper 2 Foundation

    5 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗

  7. Q2(d)

    June 2023 · Chemistry Paper 2 Foundation

    1 markC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 2

  8. Q9(a)(i)

    June 2023 · Chemistry Paper 6 Higher

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 9

  9. Q9(a)(ii)

    June 2023 · Chemistry Paper 6 Higher

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 9

  10. Q9(a)(iii)

    June 2023 · Chemistry Paper 6 Higher

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 9

  11. Q9(b)

    June 2023 · Chemistry Paper 6 Higher

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 9

  12. Q4(c)(ii)

    June 2022 · Chemistry Paper 2 Foundation

    3 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 4

  13. Q7(b)(i)

    June 2022 · Chemistry Paper 2 Foundation

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 7

  14. Q3(b)(ii)

    June 2022 · Chemistry Paper 6 Higher

    3 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 3

  15. Q3(d)

    June 2022 · Chemistry Paper 6 Higher

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 3

  16. Q3(e)(ii)

    June 2022 · Chemistry Paper 6 Higher

    2 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 3

  17. Q1(b)(ii)

    November 2021 · Chemistry Paper 2 Foundation

    2 marksC2.2 What does the Periodic Table tell us about elements?C2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 1

  18. Q3(b)(ii)

    November 2021 · Chemistry Paper 6 Higher

    3 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 3

  19. Q5(a)

    November 2021 · Combined Science Paper 8 Higher

    3 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 5

  20. Q3(a)

    November 2020 · Chemistry Paper 2 Foundation

    3 marksC2.3 How do metals and non-metals combine to form compounds?
    The whole paper ↗
    The start of question 3
All 28 questions on How do metals and non-metals combine to form compounds?, as a list
  1. June 2025, Chemistry Paper 2 Foundation, Q3(c)(ii) (3 marks): Complete the table to show the ions present and the formulae of other metal halides. Metal halide Ions present Formula Na+ and I– Sodium iodide NaI Magnesium ch
  2. June 2025, Combined Science Paper 4 Foundation, Q1(a)(iii) (3 marks): Complete the sentences to describe how magnesium bonds with chlorine. Use words from the list. gaining ions losing molecules polymers sharing Each Mg atom becom
  3. June 2025, Chemistry Paper 6 Higher, Q6(b) (2 marks): Halogens react with metals to form metal halides. Complete the table to show the ions present and the formulae of some metal halides. Metal halide Ions present
  4. June 2024, Chemistry Paper 2 Foundation, Q1(a)(ii) (2 marks): When atoms lose or gain electrons, they form charged particles called ions. State the electron configuration of Na+ ions and Cl– ions. Na+ Cl– [2]
  5. June 2024, Chemistry Paper 2 Foundation, Q1(b) (2 marks): Ionic compounds form when electrons are transferred from one atom to another. A dot and cross diagram is a model used to show the formation of an ionic compound
  6. June 2024, Chemistry Paper 2 Foundation, Q1(c) (5 marks): Table 1.2 gives information about some other ionic compounds. Table 1.2 Compound Ions Present Formula Relative Formula Mass Na+ and Cl– NaCl 58.5 Magnesium chlo
  7. June 2023, Chemistry Paper 2 Foundation, Q2(d) (1 mark): The diagram shows the structure of potassium oxide. Key O2- K+ What is the chemical formula of potassium oxide? Tick (3) one box. K2O KO2 KO [1]
  8. June 2023, Chemistry Paper 6 Higher, Q9(a)(i) (2 marks): Describe one limitation of representing sodium chloride by each of these models. Dot and cross model 3-D model [2]
  9. June 2023, Chemistry Paper 6 Higher, Q9(a)(ii) (2 marks): Explain how the ionic bond is formed in sodium chloride. Use ideas about electrons and electrostatic forces in your answer. [2]
  10. June 2023, Chemistry Paper 6 Higher, Q9(a)(iii) (2 marks): Magnesium (electron arrangement 2.8.2) reacts with oxygen (electron arrangement 2.6) to form magnesium oxide. Draw the dot and cross diagram for magnesium oxide
  11. June 2023, Chemistry Paper 6 Higher, Q9(b) (2 marks): Iron also forms ionic compounds. Complete Table 9.1 by giving the formulae of the compounds formed from the ions present. Table 9.1 Compound Ions present Formul
  12. June 2022, Chemistry Paper 2 Foundation, Q4(c)(ii) (3 marks): Sodium and oxygen react together to form sodium oxide. Complete the table to show the electronic structures and charges of the ions formed. Electronic structure
  13. June 2022, Chemistry Paper 2 Foundation, Q7(b)(i) (2 marks): Complete the table to show the missing ions and formula. [2]
  14. June 2022, Chemistry Paper 6 Higher, Q3(b)(ii) (3 marks): Explain why calcium and chlorine form different types of ions. [3]
  15. June 2022, Chemistry Paper 6 Higher, Q3(d) (2 marks): Metals and non-metals react together to form ionic compounds. Table 3.2 shows some information about three ionic compounds. Ionic Compound Ions Formula Na+ and
  16. June 2022, Chemistry Paper 6 Higher, Q3(e)(ii) (2 marks): Which structure is the lattice of potassium oxide (K2O)? Explain your answer. Structure Explanation [2]
  17. November 2021, Chemistry Paper 2 Foundation, Q1(b)(ii) (2 marks): The properties of an element depend on the arrangement of electrons in its atoms. Lithium and fluorine have different arrangements of electrons, and different p
  18. November 2021, Chemistry Paper 6 Higher, Q3(b)(ii) (3 marks): Lithium is a metal and fluorine is a non-metal. Explain how and why metals and non-metals form different types of ions. Use Fig. 4.1 to support your answer. [3]
  19. November 2021, Combined Science Paper 8 Higher, Q5(a) (3 marks): Complete the sentences to explain how the reaction between potassium and bromine is related to their electron arrangements. Use the words and numbers. You can u
  20. November 2020, Chemistry Paper 2 Foundation, Q3(a) (3 marks): Complete the sentences about the structure and bonding of ionic compounds. Put a ring around the correct words to complete each sentence. Ions are formed when e
  21. November 2020, Chemistry Paper 2 Foundation, Q3(b) (3 marks): Fig. 3.1 and Fig. 3.2 show two ways of representing the structure and bonding of sodium chloride NaCl . Cl – Na Cl Na+ + – Na Cl Fig. 3.1 Fig. 3.2 Complete the
  22. November 2020, Chemistry Paper 2 Foundation, Q5(a)(ii) (3 marks): Complete the table of information about three other salts. Use the Data Sheet. Relative formula Name Ions Formula mass K+ and Br – Potassium bromide KBr 119 Cal
  23. November 2020, Combined Science Paper 8 Higher, Q4(a) (3 marks): Sodium is an element in Group 1 of the Periodic Table. Write the balanced symbol equation for the reaction of sodium with chlorine. Include state symbols. [3]
  24. June 2019, Chemistry Paper 2 Foundation, Q6(c)(i) (2 marks): Complete Fig. 6.2 to show the number and arrangement of electrons in a magnesium ion and an oxygen ion. Mg O magnesium ion oxygen ion Fig. 6.2 [2]
  25. June 2019, Chemistry Paper 2 Foundation, Q6(c)(ii) (2 marks): What are the charges on each ion? Choose from this list. +1 –1 +2 –2 +3 –3 Charge on magnesium ion = Charge on oxygen ion = [2]
  26. June 2019, Chemistry Paper 2 Foundation, Q7(a) (3 marks): The table shows information about some metal bromides. Complete the table by filling in the blank spaces. Relative Bromide Formula of Name of bromide Metal ion
  27. June 2018, Chemistry Paper 2 Foundation, Q9(c)(ii) (3 marks): Other metals also react with bromine to form metal bromides. The formula of the metal bromide depends on the number of electrons in the outer shell of an atom o
  28. June 2018, Chemistry Paper 6 Higher, Q1(c)(ii) (3 marks): Other metals also react with bromine to form metal bromides. The formula of the metal bromide depends on the number of electrons in the outer shell of an atom o

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