Separating mixtures (including formulations) | Combined science

Starter quiz

In chemistry, what distinguishes a compound from an element?
- Compounds can be broken down into simpler chemicals. ✓
- Compounds are always liquid at room temperature.
- Elements contain multiple types of atoms.
- Elements are always gases.
Order the states of matter from most to least freedom of movement:
- 1
  
  ⇔
  
  gas
- 2
  
  ⇔
  
  liquid
- 3
  
  ⇔
  
  solid
Which is only a characteristic of a chemical change (compared to a physical change)?
- change in state
- increase in temperature
- formation of a new substance ✓
- change in mass
What defines an element in chemistry?
- a mixture of compounds
- a substance with varying properties
- a substance made of one type of atom ✓
- any solid material
What property measures how much matter is in a substance?
- 'mass' ✓
In chemistry, ______ chemicals refer to substances that only contain one type of fundamental unit, like an atom or molecule.
- 'pure' ✓