Matter is anything that takes up _____________ and has ___________.
space, mass
100
What is the formula for density?
mass/volume
100
The two parts of a solution are the ____________ and the __________.
solute, solvent
100
What is volume?
How much space something takes up.
200
Particles in a solid are moving _____________ than the particles in a liquid.
slower
200
The charge of a proton is _____________.
positive
200
What is the density of water?
1 g/mL
200
In saltwater, __________ is the solvent and ___________ is the solute.
water, salt
200
Melting point is the temperature at which something changes from a _________ to a _________.
solid, liquid
300
The energy to cause a phase change comes from adding or taking away _________.
heat
300
Elements are made up of the same type of atom.
True or false?
True.
300
Calculate the density of an object with a mass of 30 g and a volume of 10 mL?
30 g/10 mL = 3 g/mL
300
If more solvent is added to a solution, we are making the solution more ___________.
diluted
300
Boiling point is the temperature at which something changes from a _________ to a __________.
liquid, gas
400
Which phase of matter has the most energy?
gas
400
What are the 3 subatomic particles?
Protons, Neutrons and Electrons
400
An object with a density of 1.7 g/mL will __________ in water.
sink
400
If more solute is added to a solution we are making the solution more ___________.
concentrated
400
_______ are tiny particles that make up all matter.
Atoms
500
Gases have no definite volume or definite shape.
Liquids have definite volume but no definite shape.
Solids have ______________ and ____________________.
definite volume and definite shape
500
If an atom has 10 protons, 10 neutrons and 7 electrons what is the overall charge of the atom?
+3 is the overall charge.
500
Material A density = 2.1 g/mL
Material B density = 0.8 g/mL
Material C density = 1.3 g/mL
If we put all 3 materials together, what order (top to bottom) would they be in?
B, C, A
500
What is the ability of something to dissolve called?
Solubility
500
If I am melting snow, what is happening to the molecules?
I am adding heat, which makes the molecules speed up and spread apart.