Studied by 6 peopleEX
flammability, oxidation, creation of gas or solid precipate
EX
color, odor, taste, density
EX
7 liters of water, 56 kg of cake
EX
ice melts at 0 degrees C, lead has a density of 11.34 g/CM^3
Physical Change
Does not result in new substance
EX
if you melt ice you still have water that can be frozen back to ice
Chemical Changes
when two substances react, a new substance is formed
EX
burning paper or baking a cake
Matter
Anything that has mass and takes up space
Mass
How much physical "stuff" in a piece of matter
Weight
The gravitational pull on a piece of mass
Solid
Fixed volume and fixed shape
Gas
Will expand and can be compressed
Liquid
Fixed volume, takes shape of container.
Physical properties
characteristics that can be observed or measured without changing the substance.
Intensive properties
Type of physical property that does not depend on the amount of the given substance.
Extensive properties
Type of physical property that depends on how much of the substance you have.
Chemical Property
Characteristics that are revealed only when the composition of the substance changes through a chemical reaction.
Physical Change
Does not result in new substance.
Chemical Changes
when two substances react, a new substance is formed.
Note
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