S1.1 Introduction to the particulate nature of matter
15 revision questions with answers for S1.1 Introduction to the particulate nature of matter, marked SL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Substance made of two or more elements chemically bonded in a fixed ratio?
- Mixture
- Alloy
- CompoundRight answer
- Element
What this set covers
Elements, compounds and mixtures come first, then the separation techniques that follow from them: filtration, fractional distillation, solvent extraction and chromatography. It finishes with changes of state, kelvin temperature and state symbols.
- Common mix-up
- Students often mix up evaporation and boiling: evaporation happens only at the surface below the boiling point, while boiling happens throughout the liquid.
- Revision tip
- Pick four separation techniques and write, from memory, the property of the mixture each one exploits, then check against the answers.
All 15 questions and answers
Substance made of two or more elements chemically bonded in a fixed ratio?
Answer: Compound
Combination with uniform composition throughout, such as salt water?
Answer: Homogeneous mixture
Substance that cannot be broken down into simpler substances by chemical means?
Answer: Element
Technique that separates an insoluble solid from a liquid?
Answer: Filtration
Technique that separates miscible liquids with close boiling points?
Answer: Fractional distillation
Technique using a separating funnel and a second, immiscible liquid to isolate a solute?
Answer: Solvent extraction
Technique separating dyes by their affinities for stationary and mobile phases?
Answer: Chromatography
Change of state from solid directly to gas?
Answer: Sublimation
Change of state from gas directly to solid?
Answer: Deposition
Liquid turning to gas below its boiling point, only at the surface?
Answer: Evaporation
Kelvin temperature is directly proportional to the particles' average…?
Answer: Kinetic energy
Energy absorbed while a solid melts at constant temperature increases the particles'…?
Answer: Potential energy
25 °C expressed in kelvin?
Answer: 298 K
State symbol for a substance dissolved in water?
Answer: (aq)
State of matter with a fixed volume but no fixed shape?
Answer: Liquid
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options were written for that question.