Element
A pure substance made of only one kind of atom
Compound
A substance made up of atoms of two or more different elements joined by chemical bonds
pure substance
A substance made of only one kind of matter and can't be physically separated
mixture
A combination of two or more substances that are not chemically combined (physically combined)
Accuracy
the desired outcome/ measurement
Precision
getting the same result or measurement multiple times
what are the 2 types of mixtures
homogeneous and heterogeneous
homogeneous mixture (solution)
a gaseous, liquid or solid mixture that has the same proportions of its components throughout a given sample
physical change
A change in a substance that does not involve a change in the identity of the substance
chemical change
A change in matter that produces one or more new substances
What is the formula to calculate density?
D=m/v
Is density a physical or chemical property?
physical property