Properties and states of matter Flashcards
what is matter?
matter has mass and occupies space
what is the mass of an object?
the mass of an object is the amount of matter that it contains, and its weight of the gravitational force exerted on it.
how can a substances stay of matter be changed?
by adding or removing heat
what are solutions?
a type of mixture
what is a solute?
the dissolved substance
what is a solvent?
what the solute is dissolved in
what are the 3 states of matter?
- solids
- liquids
- gases
what is solids?
they have a definite shape and volume, because the molecules of which they are made occupy fixed positions and do not move freely.
what is liquids?
they have a definite volume but no definite shape because the molecules in a liquid are loosely bound and move freely
what are gases?
they have definite shape or volume. The attraction between the molecules of a gas is very weak.
what is a melting point?
the temperature at which a solid becomes a liquid
what is a boiling point?
the temperature at which a liquid becomes a gas
what is condensation point?
the temperature at which a gas becomes a liquid
what is freezing point?
the temperature at which a liquid becomes a solid
