Ch.2 Matter and Change Flashcards
An object is a measure of the amount of matter the object contains
Mass
An object is a measure of the space occupied by the object
Volume
A property that depends on the amount
Extensive Property
A property that depends on the type of matter in a sample, not the amount
Intensive Property
Matter that has a uniform and definite composition
Substance
A quality or condition of a substance that can be observed or measured without changing the substance’s composition
Physical Property
A form of matter that has a definite shape and volume
Solid
A form of matter that has an indefinite shape, flows, yet has a fixed volume
Liquid
A form of matter that takes both the shape and volume of its container
Gas
The gaseous state of a substance that is generally a liquid or solid at room temperature
Vapor
A physical blend of two or more components
Mixture
Some properties of a material change
Physical Change
A mixture in which the composition is not uniform throughout
Heterogeneous Mixture
A mixture in which the composition is uniform throughout
Homogeneous Mixture
Another name for a homogeneous mixture
Solution
Used to describe any part of a sample with uniform composition and properties
Phase
The process that separates a solid from the liquid in a heterogeneous mixture
Filtration
The process in which a liquid is boiled to produce a vapor that is then condensed into a liquid
Distillation
The simplest form of matter that has a unique set of properties
Element
A substance that contains two or more elements chemically combined in a fixed proportion
Compound
A change that produces matter with a different composition than the original matter
Chemical Change
An arrangement of elements in which the elements are separated into groups based on a set of repeating properties
Periodic Table
One-or two-letters that represent an element
Chemical Symbol
Each horizontal row of the periodic table
Period
Each vertical column of the periodic table
Group
The ability of a substance to undergo a specific chemical change
Chemical Property
One or more substances change into one or more new substances
Chemical Reaction
A substance present at the start of the reaction
Reactant
A substance produced in the reaction
Product
A solid that forms and settles out of a liquid mixture
Precipitate
States that in any physical change or chemical reaction, mass is conserved
Law of Conservation of Mass
