states of matter Flashcards
(6 cards)
1
Q
Describe particle arrangement in solids.
A
Particles in fixed positions, regular lattice, vibrate only, not compressible.
2
Q
Describe particle arrangement in liquids.
A
Particles are close but irregular, move past each other, not compressible.
3
Q
Describe particle arrangement in gases.
A
Particles are far apart, move randomly at high speeds, compressible.
4
Q
What is a physical change?
A
A change in state with no new substance formed.
5
Q
What does (aq) mean?
A
Aqueous: the substance is dissolved in water.
6
Q
What is needed to change state?
A
Energy (heat) to overcome electrostatic forces of attraction between particles.
