Mixtures/Pure Substances
Solubility
Chemical/Physical Changes
Mass/Volume
Density
100
What is a homogenous mixture?
Composition is uniform. (You cannot see the substances in the mixture/it is all dissolved together)
100
Where are unsaturated solutions found on a solubility chart?
UNDER the line
100
What is a physical change?
A change in an object or substance's physical appearance but not its chemical make up. (It can be reversed!)
100
What is mass?
The amount of mass in an object
100
T/F: An object with a low density has a high mass.
FALSE:
High mass = high density.
200
What it is a heterogenous mixture?
Composition is NOT uniform (you can see the substances that make up the mixture/you can separate it easily)
200
Where are saturated solutions on the solubility chart?
ON the line
200
What is a chemical change?
The reaction causes a new substance to form. (It CANNOT be reversed)
200
What is volume?
The amount of space an object or substance takes up.
200
Order from LEAST DENSE to MOST DENSE
D
C
A
B
300
mixture or pure substance?
Pure substance: Compound Element
300
Where are supersaturated solutions found on the solubility chart?
ABOVE the line
300
Chemical or physical change?
Baking a cake
Chemical change
300
Which one has more mass?
A cup of water OR a bottle of flavored water
Flavored water
300
Which object is the most dense?
Iron
400
Can salt water be separated?
Yes, by evaporation
400
A solution of 30g of KClO3 in 100g of water at 40°C is....
Supersaturated
400
Chemical or physical change?
Turning water into water vapor
Physical change
400
What is the volume of a cube with a side length of 4cm?
64cm3
400
What is density?
The amount of mass in a given space.
500
How can you separate oil that is floating on top of water?
Decantation
500
A solution with 70g of K2Cr2O7 in 100g of water heated at 80°C is...
Saturated
500
Chemical change or physical change?
Chemical change
500
A rock is placed inside of a graduated cylinder containing water. After the rock is placed inside, the water level increases by 10mL. What physical property can be measured by this increase in water level?
Volume
500
The 3 cubes below are entirely made up of iron. Which one is more dense?
Small Medium Large
Large
It has a larger volume that is filled with more matter (iron).