States of Matter
Which state (solid, liquid, gas) has the most kinetic energy?
Gas
What is it called when a liquid turns into a gas?
Evaporation/Boiling/Vaporization
Is rusting a Chemical or Physical change?
chemical
If an object has a mass of 9g and volume of 3mL, what is the density?
D = mass/volume = 9g/3mL = 3g/mL
What are 3 examples of physical properties?
Color, shape, melting point, boiling point, physical state, etc.
What state of matter is hydrogen peroxide?
Liquid
What is it called when a solid turns into a liquid?
Melting
Is wood burning a chemical or physical change?
chemical
If an object has a mass of 18g and a volume of 6mL, what is the density?
D = mass/volume = 18g/6mL = 3g/mL
What is it called when matter goes from one state to another?
State change
Can dry ice be all states of matter (at atmospheric pressure)? If not, which state is it not?
No, liquid state
What is it called when a liquid turns into a solid?
Freezing
Is water being colored a chemical change?
physical
If an object has a volume of 9mL and a density of 2g/mL, what is the MASS?
D = mass/volume
2g/mL = m/9mL
2g/mL*9mL = m
18g = m
Give an example of a chemical property
Ability to rust, ability to tarnish, ability to burn, etc.
Which state of matter has a definite mass and volume?
Solid
What is it called when a solid turns into a gas?
Sublimation
Are trees growing leaves a chemical change?
chemical
If an object has a mass of 49g and density of 7g/mL, what is the VOLUME?
D = m/V
7g/mL = 49g/V
7g/mL*V = 49g
V = 49/7 = 7mL
What is density?
Level of compactness, D=m/V
What state of matter has no definite shape, but a definite volume?
Liquid
What is it called when a gas turns into a liquid?
Is water freezing a chemical or physical change?
physical
If the mass of an object is 197g and the density is 5.3g/mL, what is the VOLUME?
D = m/V
5.3g/mL = 197g/V
5.3g/mL*V = 197g
V = 197g/5.3g/mL = 37.2mL
What is kinetic energy?
Energy of movement