Classification
A type of matter formed by chemically joining two or more elements
Compound
Boiling point, solubility, color, taste and density are all examples of…
physical properties
How do particles in a solid move?
They vibrate
Cutting a piece of paper in half
Physical
An object has a mass of 15 g and a volume of 4.5 cm3. Find its density.
3.33 g/cm^3
Hydrogen, Gold, and Iron are all examples of…
Elements
A sheet of metal is 2 cm wide, 10 cm tall and 1.5 cm long. It has a mass of 42 grams. What is its density?
1.4 g/cm^3
The most common state of matter in the universe is…
Plasma
Glass breaking is
physical change
Bose-Einstein condensates are used to simulate conditions in…
Black holes
This is another name for a homogeneous mixture
Solution
Which property of matter measures a substance’s ability to dissolve
Solubility
The amount of energy needed to change a material from the solid state to the liquid state is called…
Heat of fusion
Density is a _______ property
physical
List two examples of where plasma can be found.
stars and neon lights
Explain the difference between compounds and mixtures.
Compounds are chemically combined, mixtures are physically combined.
Aluminum has a density of 2.7 g/mL. When a piece of it is placed in a graduated cylinder with 11 mL of water, the water rises to 20 mL. Find the mass of the aluminum.
24.3 grams
Matter that has a fixed volume but no fixed shape is…
Liquid
Milk going sour is a
Chemical change
What is the most common type of matter in the universe
plasma
Determine if the following mixtures are homogeneous or heterogeneous:
What is the formula for density
mass/volume
Think about the changing states of matter diagram. Write the names for the following transitions:
Fireworks exploding is a
chemical change
List 3 of the signs that a chemical reaction has occurred.
Release of light
Temperature change
Odor change
Sudden color change
Gas given off
Sudden appearance of a solid (called a precipitate)