Chemistry: Unit 2 Flashcards
Chemistry
the study of the composition of matter and the changes that matter undergoes
Matter
anything that has mass and occupies space
Extensive Properties
a property that depends on the amount of matter in a sample
Intensive Properties
a property that depends on the type of matter in a sample, not the amount of matter
Mass
a measure of the amount of matter that an object contains;the SI base unit of mass is the kilogram.
Volume
a measure of the space occupied by a sample of matter
Physical Property
a quality or condition of a substance that can be observed or measured without changing the substance’s composition
Physical Change
a change during which some properties of a material change, but the composition of the material does not change
Chemical Property
the ability of a substance to undergo a specific chemical change
Chemical Change
a change that produces matter with a different composition than the original matter
Phase (Phase of Matter)
any part of a sample with uniform composition and properties
Solid
a form of matter that has a definite shape and volume
Liquid
a member of a large class of relatively water-insoluble organic compounds; fats, oils, and waxes are lipids
Gas
a form of matter that takes the shape and volume of its container; a gas has no definite shape or volume
Freezing
the process through which a substance changes from a liquid to a solid