mixture

a combination of 2 or more substances that are chemically combined; are pure substances; can be separated physically, such as filtration and evaporation; components are elements, compounds, or both; keep their original properties; formed using any ratio o

3 type of mixtures

solutions, suspensions, colloids

solution

a mixture that appears to be a single substance but is composed of 2 or more substances that get evenly distributed among each other; not just liquids, but can be solids or gases too; honegeneous; example: hot chocolate

dissolving

the process of particles separating and spreading through a substance

solute

the substance that dissolves

solvent

substance in which the solute is dissovled or the part doing the dissolving

soluble

when a substance can dissolve

insoluble

when a substance cannot dissolve

concentration

amount of solute dissolved in a solvent

concentrated solution

has lots of solute

dilute solution

has less solute

saturated solution

has all the solute it can handle

3 ways to speed up the solubity of a solution

crush, heat, stir

homogeneous

Compose of parts or elements that are all of the same kind ; essentially alike ; don't scatter light, cannot be filtered

suspension

a mixture in which the particles of material are dispersed throughout a liquid or gas but are large enough that they eventually setlle out; particles do not dissolve, particles scatter light, particles can be separated with a filter(heterogeneous); exampl

colloids

a mixture in which particles are disposed throughout but are not heavy enough to settle out; particles spread throughout, particles do not settle out, particles scatter light; homogeneous; example: milk

synthetic

a compound made artificially by chemical reactions; plastic

Law of Conservation of Matter

Matter is not created nor destroyed in any chemical or physical change

Chemical Reactions

process by which one or more substances undergoes change to produce one or more different substances.

compounds

a pure substance made up of 2 or more elements that are chemically combined; break down chemically; one particle equals molecule; are elements; lose their original properties; separated by chemical means; formed using a set mass ratio of components

atoms

simplest form of matter; consists of a single particle of matter

molecules

made up of 2 or more atoms joined together by a chemical reaction; the atoms may be all the same or different

element

A pure substance that cannot be broken down into anything simpler by physical or chemical means; each has a unique set of ohysical and chemical properties; classified as metals, nonmetals, or metalloids, based on their properties

solubility

the _______ of a solute is the amount of solute needed to make a saturated solution using a given amount of solvent at a certain temperature; the ability of a given substance(solute) to dissolve into a solvent

heterogeneous

Consist of elements that are not of the same kind or nature ; not of same kind or type; can scatter light, can be filtered

metals

elements that are shiny and are good conductor of thermal energy and electric current, malleable, and ductile

nonmetals

elements that are dull, and poor conductors of thermal energy and electric current

metalloids

semiconductors, elements that have properties both metals and nonmetals, some shiny, some dull

pure substance

made up of a single element or a compound