2 States of matter and mixtures

Practice questions on States of matter and mixtures

• A student has collected a sample of muddy river water. Describe how the processes of sedim… (4 marks, Describe)
• A chemist has produced a sample of an unknown solid compound and wants to check whether it… (4 marks, Explain)
• A forensic scientist is investigating an ink sample found at a crime scene. The scientist … (4 marks, Explain)
• Explain, using particle theory, why a liquid can be poured into a container and changes sh… (4 marks, Explain)
• Explain, using particle theory, why a solid substance keeps a fixed shape but a liquid tak… (4 marks, Explain)
• Explain, using particle theory, what happens to the particles in a liquid when it is heate… (4 marks, Explain)
• Describe the differences between the arrangement and movement of particles in a solid and … (4 marks, Describe)
• Explain, using particle theory, what happens to the particles in a gas when it is cooled u… (4 marks, Explain)
• A student dissolves copper sulfate crystals in water and then wants to recover pure copper… (4 marks, Describe)
• A food scientist wants to separate a mixture of two liquids — ethanol (boiling point 78 °C… (4 marks, Explain and Describe)