Properties
What is a physical property?
Something that can be observed without changing the identity of a substance
What is a chemical change?
A change that changes the substance into a new substance
What are the two types of pure substances?
Elements and compounds
What is a unit?
A measurement
Which state of matter has the most closely packed particles?
Solid
What is a chemical property?
Describes how something reacts, Something that can be observed only by changing the identity of a substance
What is a physical change?
A change that does not change the identity of a substance
What is an element? give an example.
A pure substance made up of one type of atom
Oxygen, aluminum, gold, etc
What is a quantity?
What is being measured
Which state of matter does not have a definite volume?
Gas
List 3 examples of physical properties
Mass, density, volume
Color, shape, size, texture
Malleability, ductility, magnetic ability, conductivity
Boiling point, melting point
Etc
List 3 examples of physical changes
Cutting, crushing, reshaping, changing states of matter, painting, etc
What is a compound? give an example
A pure substance made up of one type of molecule
sugar, salt, water, etc
If the quantity is height, what could be the unit?
inches, cm, feet, meters, yards
Which states of matter have no defined shape?
Liquid and gas
List 3 examples of chemical properties
Rusting, flammable, reacts with oxygen, reacts with water, reacts with acids, etc
List 3 examples of chemical changes
Burning, rusting, reacting with water, reacting with oxygen, etc
Give 3 examples of heterogeneous mixtures
dirt, salad, snow globe, etc
If the unit is liters, what could be the quantity?
Volume
Changing states of matter involves physical or chemical changes?
Physical changes
Determine whether the following are physical or chemical properties:
-flammability
-magnetic ability
-conductivity
-rusting
-boiling point
-flammability (Chemical)
-magnetic ability (Physical)
-conductivity (Physical)
-rusting (Chemical)
-boiling point (Physical)
Determine whether the following are chemical or physical changes:
-baking a cake
-bleaching a stain
-boiling iodine
-baking a cake (chemical)
-bleaching a stain (chemical)
-boiling iodine (physical)
Give 3 examples of homogeneous mixtures
milk, salt water, coffee, etc
What is the difference between mass and weight?
Mass is the amount of matter in an object and weight is the gravitational pull on mass
What are the states of matter, in order, with the fastest to slowest moving particles?
Gas, liquid, solid