#909 Elements, Compounds, Mixtures

atoms

basic particle from which all elements are made

element

-cannot be broken down into any other substance

- 1 or more of the same type of atoms chemically bonded

molecule

2 or more atoms bonded (same or different)

compound

2 or more different atoms bonded together in a set ratio

mixture

2 or more substances mixed together but NOT chemically bonded

homgeneous mixture

mixture in which substances are evenly distributed (you cannot see the different parts)

heterogeneous mixture

mixture in which you can see the different parts

chemical formula

shows the elements of a compound in the set ratio of the atoms

subscript

number written below chemical symbol that tells how many atoms of that element is in the molecule or compound

matter

anything that has mass and takes up space (volume)

coeefficient

a number placed in front of an element symbol or chemical formula in an equation; it tells you how many molecules of that substance are in the equation

solution

a homogeneous mixture of two or more substances where the component particles are completely and uniformly distributed

solvent

The substance present in the greatest amount that does the dissolving in a solution.

Colloid

a mixture where tiny, insoluble particles of one substance are suspended throughout another substance

Magnets

A method of separation that uses magnetic properties to attract magnetic materials away from non-magnetic ones.

Filtering

A physical separation process that uses a barrier to remove solid particles from a liquid or gas.

Evaporation or boiling

A separation process that involves heating a liquid to create vapor, which can then be condensed back into a liquid, separating the solid particles dissolved.