Chapter 2 Vocabulary Flashcards
Volume
A measure of the space occupied by the object
Mass
A measure of the amount of matter the object contains
Extensive property
A property that depends on the amount of matter in a sample
Intensive property
A property that depends on the type of matter in a sample
Substance
Matter that has a uniform and definite composition
Physical property
A quality or condition of a substance that can be observed of measured without changing the substance’s composition
Solid
A form of matter that has a definite shape and volume
Liquid
A form of matter that has an indefinite shape, flows, yet has fixed volume
Gas
A form of matter that takes both the shape and volume of its container
Vapor
Describes the gaseous state of a substance that is generally a liquid or solid at room temperature
Physical change
During this, some properties of a material change, but the composition of the material does not change
Mixture
A physical blend of two or more components
Heterogeneous mixture
A mixture in which the composition is not uniform throughout
Homogeneous mixture
A mixture in which the composition is uniform throughout
Solution
Another name for a homogeneous mixture
Phase
Used to describe any part of a sample with uniform composition and properties
Filtration
The process that separates a solid from a liquid in a heterogeneous mixture
Distillation
During this, a liquid is boiled to produce a vapor that is then condensed into a liquid
Element
The simplest form of matter that has a unique set of properties
Compound
A substance that contains two or more elements chemically combined in a fixed proportion
Chemical change
A change that produces matter with a different composition than the original matter
Chemical symbol
It is a one or two letter symbol representing an element
Chemical property
The ability of a substance to undergo a specific chemical change
Chemical reaction
One or more substances change into one or more new substances
Reactant
A substance present at the start of the reaction
Product
A substance produced in the reaction
Precipitate
A solid that forms and settles out of a liquid mixture
Law of conservation of mass
States that in any physical change or chemical reaction, mass is conserved
