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chemistry

vocabulary

QuestionAnswer
atom The basic unit of matter
nucleus The centger of an atom that contains the protons and neutrons.
electron Negatively charged particles, located outside the atomic nucleus
element A pure substance made of one type of atom, cannot not be broken down any further.
molecule Two or more atoms combined
compound The chemical combination of two or more elements in definite proportions.
bond(chemical) What keeps molecules and compounds together. The glue
adhesion Attraction between molecules of the same substance.
cohesion Attraction between molecules of different substances
monomer small unit that can join together with other small units to form polymers
polymer Large compound formed from combinations of many monomers
carbohydrates the main source of energy in living things. In animals starch is called glycogen and in plants cellulose
lipids used to store energy(long term) and makes up the cell membrane and waterproof coverings
proteins amino acids are the building blocks and their job is to control the rate of reactions, form structures, regulate cell proccesses, and transport substances
nucleic acid store and transmit heridetary information
Created by: Dcrawford