Practise MYP Chemistry questions on 1 Matter and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
Fill in the blank: Unlike solids, both liquids and gases are classified as __________ because their particles are not in fixed positions and can flow.
True or False: It is impossible for the mass number () of a stable atom to be smaller than its atomic number ().
According to the particle model, when a gas is compressed using a syringe, what specifically is changing at the molecular level?
In the Bohr model of the atom, electrons move around the nucleus in fixed paths known as __________ or shells.
Which statement correctly distinguishes between boiling and evaporation?
condensates
fluids
solutes
isotopes
True
False
The volume of the individual gas particles decreases
The intermolecular forces between particles become stronger than gravity
The average distance between the gas particles decreases
The gas particles slow down and lose kinetic energy
energy levels
nuclei
orbitals
protons
Boiling is an exothermic process, whereas evaporation is an endothermic process
Evaporation only occurs at the boiling point of the liquid
Evaporation is a cooling process, while boiling requires a constant external heat source to maintain temperature
Boiling occurs only at the surface, while evaporation occurs throughout the liquid
