States of matter Flashcards
1
Q
what are the 3 states of matter
A
solid
liquid
gas
2
Q
what is the Brownian motion
A
the random movement of particles in liquids or gases, produced by large numbers of collisions with smaller, often invisible particles
3
Q
describe the characteristics of a solid
A
- high density
- regular pattern of particles
- low energy
- forces between the particle are strong or quit strong
- cant be compressed
- fixed shape
- fixed volume
4
Q
describe the characteristics of a liquid
A
- medium density
- random arrangement of particles
- greater energy
- forces between the particles are less strong
- cant be compressed
- not a fixed shape
5
Q
describe characteristics of gases
A
- low density
- random arrangement of particles
- highest energy
- forces between the particles are non-existent
- no fixed shape
- no fixed volume
6
Q
What causes matter to change into different states
A
heat
7
Q
what are the different reactions that change state
A
- melting
- boiling
- deposition
- sublimation
- condensation
- freezing
8
Q
what is a pure substance
A
it means it contains only one substance
9
Q
what make a substance pure
A
for safety and quality
10
Q
what is a mixture
A
two or more substances that are not chemically combined
11
Q
what is a solution
A
a mixture made by dissolving a substance in solvent
12
Q
what is a solute
A
the substance being dissolved
