2.1-2.3 Vocab FlashCards

pure substance

matter that has the exact composition

element

cannot be broken down and only has 1 atom type

atom

smallest part of a substance that cannot be broken down

compound

2 or more elements in a fixed composition that has a chemical formula

heterogeneous mixture

a mixture that you can tell the difference between the parts

homogeneous mixture

a mixture that you cant tell the difference between the parts

solution

has small particles, is homogeneous, and 1 or more solutes dissolved in a solvent

suspension

has intermediate particles, is homogeneous, and solid particles do not dissolve in a liquid solution.

colloid

has bigger particles, is heterogeneous, and mixture of 2 substances where 1 is dispersed throughout the other

physical property

any characteristic of a material that can be observed/measured without changing the composition of the substances in the material.

viscosity

the tendency of a liquid to keep from growing

conductivity

a materials ability to allow heat to flow

malleability

the ability of a solid to be hammered without shattering

melting point

the temperature at which a substance changed from solid to liquid

boiling point

the temperature at which a substance boils/changes from liquid to gas

filtration

a process that separates the materials based on the size of the materials

distillation

a process that separates the substances in a solution based on their boiling points

physical change

properties of a material change, but the substances in the material remains the same

chemical property

any ability to produce a change in the composition of matter

flammability

a materials ability to burn in the presence of oxygen

reactivity

the property that describes how readily a substance combines chemically with other substances

chemical change

when a substance reacts and forms one of more new substances

precipitate

any solid that forms and separates from a liquid