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16 Cards in this Set

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What is chemistry?
It is a study of matter and how it changes.
What is matter?
Anything that has mass and takes up space.
What are the states of matter?
Solid, liquid and gas.
What is an atom?
Atoms are the basic building blocks of matter. They contain subatomic particles called neutrons, electrons, and protons.
What are elements?
Elements are made up of two or more of the same atom.
Hydrogen, Oxygen, Carbon...
What is a compound?
Compounds are made up of two or more elements in a fixed ratio.
Water, hydroxide...
Define physical property and give some examples.
It can be observed without changing the substance into something else.

Boiling point, melting point, density, mass and volume.
Define chemical property and give some examples.
It can only be observed when substance is changed into something else.

Flammability, reactivity, corrosiveness
Define intensive property and give some examples.
Intensive properties of substances are independent of amount of the sample.

Color, boiling point, melting point, and density
Can be used to identify substances...
Define extensive property and give some examples.
Extensive properties of substances are dependent on the amount of substance present.

Mass, volume and energy
Relates to amount of substance...
Define physical change and give some examples.
Physical changes are ones that do not alter the substance's composition.

Changes in state (liquid, solid, gas) or in volume.
Define chemical change and give some examples.
Chemical changes alter a substance's composition.

Includes combustion, oxidation, and decomposition.
Define distillation.
A process that depends on the substance's ability to form gases.
Boiling point...
Define filtration.
A process that separates liquids from solids.
Think water filter...
Define chromatography.
A process that separates mixtures.
Thin layer chromatography
Size exclusion
Ion Exchange
Which four elements make up 96% of all living matter?
Carbon (C), Hydrogen (H), Oxygen (O) and Nitrogen (N)