Important+Terms


 * Written below are some important chemistry terms along with their definitions.**
 * Please feel free to add any new terms and/or edit the definitions of the pre-existing terms below.**
 * Please add in the proper alphabetical order. Thanks.**

A-C


 * __Atom__**-The smallest particle of a chemical element that consists of electrons, protons, and neutrons.
 * __Addition__** **__reaction__**- A reaction where atoms add to a carbon-carbon multiple bond.
 * __Adsorption__**- When one substance collects of the surface of another one.
 * __Alcohol__**- An organic molecule containing an -OH group
 * __Aldehyde__**-An organic molecule containing a -COH group
 * __Alkali__** **__metals__**- Group I in the periodic table.
 * __Alkaline__** **__earth__** **__metals__**- Group II in the periodic table.
 * __Alkane__**- An organic molecule which contains only single carbon-carbon bonds.
 * __Alkene__**- An organic molecule containing at least one C=C bond
 * __Alkyne__**- An organic molecule containing at least one C-C triple bond.
 * __Allotropes__**- When you have different forms of an element in the same state. The relationship that white phosphorus and red phosphorus have to each other is that they're allotropes.
 * __Chemical Changes__**-A chemical reaction in which one or more substances are converted into another new substance.
 * __Chemical Property__**-How a chemical reacts with other chemicals.
 * __Chemistry__**-The study of matter and its properties at the molecular level.
 * __Compound__**-When two or more different atoms are combined
 * __Condensation__**-The process in which gas changes into liquid.

D-H

__**Decantation**__-Pouring the liquid off the top of a mixture. __**Endothermic-**__A chemical reaction that absorbs heat, producing products with more potential energy than the reactants.
 * __Deposition__-**The process in which a gas changes directly into a solid.
 * __Element__**-Consists of only one specific type of atom.
 * __Emulsion-__** Particles are very tiny.
 * __Exothermic-__**A chemical reaction that releases heat, producing products with less potential energy than the reactants.
 * __Extrinsic Property__-**Characteristics of a substance that are dependent on the amount of the substance; Also known as Extensive Property.
 * __Filtration__**- Uses a porous barrier to separate a solid from a liquid.
 * __Heterogeneous Mixture__**-A mixture that consists of different substances or phases.
 * __Homogeneous Mixture__**-A mixture with the same uniform appearance and composition throughout.

I-O

__**Matter-**__Anything that has matter or volume. __**Mixture**__**-**Combination of two or more pure substances that can be separated by physical means.
 * __Inference__**-An educated guess based on collected information.
 * __Intrinsic Property__**-Characteristics of a substance that are NOT dependent on the amount of the substance; Also known as Intensive Property.
 * __Kinetic Energy__**-Is moving energy.
 * __Molecule__**-A substance with two or more atoms chemically combined.
 * __Observation__**-The act of gathering facts using our five senses.

P-S __**Suspensions-**__ Large particles are floating in the liquid or gas medium.
 * __Physical Change__**-A change in the physical appearance of a substance that does not change the identity of the substance.
 * __Physical Property__**-The characteristics of chemical when it is by itself.
 * __P____otential Energy__**-Is stored energy.
 * __Solidification__**-The process in which a liquid changes into a solid.
 * __Sublimation__-**The process in which a solid changes directly into a gas.