Introductions To Chem And Matter Flashcards
Inorganic chemistry
Study of chemicals that do not contain carbon
Organic chemistry
Study of all chemicals containing carbon
Biochemistry
Takes place in organisms
Analytical chemistry
Composition of matter
Physical chemistry
Mechanism, the rate, and the energy transfer that occurs when matter undergoes a change
States of matter
Solid , liquid , and gas
Solid
Definite shape, definite volume, incompressible.
Expand when heated.
Liquid
Takes shape of container , incompressible , and definite volume
Gas
Takes shape of container, easily compressed , and any volume
Physical change
Properties of a material change but composition doesn’t change
Two categories used to classify physical changes
Reversible and irreversible
Mixture
Physical blend of two or more components
Heterogeneous mixtures
Composition is not uniform throughout
Homogeneous mixtures
Composition is uniform throughout
Another name for homogeneous mixture
Solution
Phase
Any part of a sample with uniform composition and properties
How many phases in heterogenous mixtures ?
Two or more
How many phases are in homogeneous mixtures ?
One phase
Filtration
Separated a solid from the liquid in heterogeneous mixtures
Distillation
A liquid is boiled to produce a vapor that is then condensed into a liquid.
Element
Simplest form of matter that has unique set of properties
Compound
Substance that contains two or more elements chemically combined in a fixed proportion
Compounds can be broken Down but …
Elements can not
Chemical change
Change that produces matter with a different composition than the original matter.
Process that breaks down water
Electricity
If the composition of a material is fixed it is a
Substance
If the composition of a material varys it is
Mixture
Chemical property
Ability of a substance to undergo a specific chemical change
During chemical change , the composition of matter …
Always changes
Chemical reaction
One or more substances game into one or more new substances.
Reactant
Substance present at the start of the reactant
Product
Substance produced in the reaction.
