Expert Chemistry Tutoring

Q1. Knowledge Recall (1-2 marks)

Define metallic bonding. (2 marks)

Q2. Application of Knowledge (2-3 marks)

Explain why copper is a good electrical conductor. (3 marks)

Q3. Data Analysis/Calculations (3-4 marks)

Sodium has a relative atomic mass of 23.0. Calculate the number of atoms in 0.1 moles of sodium. (4 marks)

Q4. Knowledge Recall (1-2 marks)

State two physical properties of metals that are due to metallic bonding. (2 marks)

Q5. Application of Knowledge (2-3 marks)

Describe how the delocalisation of electrons in a metal affects its chemical reactivity. (3 marks)

Q6. Data Analysis/Chemical Equations (3-4 marks)

Sodium reacts with chlorine to form sodium chloride. Write the balanced chemical equation for this reaction. (4 marks)

Q7. Application of Knowledge (2-3 marks)

Explain why metals form positive ions when they react with non-metals. (3 marks)

Q8. Knowledge Recall (1-2 marks)

Define electronegativity and state the general trend of electronegativity across a period. (2 marks)

Q9. Application of Knowledge (2-3 marks)

Explain why alloys are often used in industry. (3 marks)

Q10. Data Analysis/Calculations (3-4 marks)

Magnesium has a density of 1.74 g/cm³. Calculate the volume of 2.50 moles of magnesium. (4 marks)