Studied by 0 people
Looks like no one added any tags here yet for you.
Chemistry
The branch of science that studies the properties, composition, and behavior of matter.
Matter
Anything that has mass and occupies space.
Substance
A form of matter that has a definite (constant) composition and distinct properties.
Mixture
A combination of two or more substances in which the substances retain their distinct identities.
Element
A substance that cannot be separated into simpler substances by chemical means.
Compound
A substance composed of atoms of two or more elements chemically united in fixed proportions.
Homogeneous mixture
A mixture with a uniform composition throughout.
Heterogeneous mixture
A mixture where the composition is not uniform.
Physical properties
Properties that can be observed and measured without changing the identity of a substance.
Chemical properties
Properties that can be observed when the matter undergoes a chemical change.
Intensive properties
Properties that do not depend on the amount of matter in a sample.
Extensive properties
Properties that depend on how much matter a sample contains.
SI Base Units
International System of Units used for measurement.
Density
The mass per unit volume of a substance.
Significant Figures
Digits in a number that carry meaningful information about its precision.
Precision
How close a set of measurements are to each other.
Accuracy
How close a measurement is to the true value.
Temperature
A measure of the average kinetic energy of the particles in a substance.
Scientific Method
A systematic approach to acquiring knowledge through observation, hypothesis, experimentation, and theory.
