Density
Density is a proportional relationship between what two physical properties ?
mass and volume
Which state/phase of matter has a definite shape.
Solid because its molecules are so close and compact that the shape will be definite.
What charge does a proton, electron, and neutron have?
positive, negative, neutral
What mathematical operation does "proportional" mean?
division
Which state/phase occupies space?
All three states/phases occupy space. Remember, all matter occupies space (aka volume) and has mass.
For EVAPORATON, did the system gain or lose energy?
Gained Energy
Where are the protons located?
Nucleus, center
How can you find the volume of an irregular object?
Measure the water displacement.
Which state(s) does not have a definite shape or volume?
Gas. The gas molecules are able to be by themselves floating around. They can all be in a place like a balloon, for example, but its not the gas that forms the balloon shape ... its the balloon's stretchy qualities that gives it shape.
What is the name of the phase change when a SOLID becomes GAS? Give an example.
sublimation
Where are the electrons located?
Outside the nucleus
An object contains 50g of mass and 10mL of volume. What is the density of the object?
5g/mL
Which states DO have a definite volume?
Solid and liquid.
Give an example of condensation
hot breath on glass, cold soda on a hot day
Every element has the same number of what subatomic particle?
proton
There is an object that was dropped in 40mL of water and the water displace to 60mL. The object has a mass of 20g. What is the density?
1g/mL
Tell me the order of states of matter with the most energy to least energy.
Gas, liquid, solid
Did the phase change deposition lose or gained energy
lose energy
Electron