Chemistry 1-4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| chemistry | the sciene of materials and the changes that these materials undergo
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| scientific method | the process that lies at the center of science inquiry
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| theory | is a set of tested hypotheses that gives an overall explanation of some part of nature
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| natural law | statemednt that summarizes generally observed behavior
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| measurement | a quantitative observation
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| matter | the "stuff" of which the universe is composed of
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| atom | fundamental unit of which elements are made
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| compounds | substances made by bonding atoms together in specific ways
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| molecule | a collection of atoms bonded together that behave as a unit
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| elements | substances containing only one type of atom
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| solid | substance with a fixed shape and volume
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| liquid | substance with a definite volume that takes the shape of its container
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| gas | substance with no definite shape or volume
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| physical property | characterisitic of a substance that can change without the substance s becoming a different substance
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| chemical property | characteristic that describes the ability of a substance to change to a different substance
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| physical change | change that does not affect the composition of a substance
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| chemical change | change in which a substance becomes a different substance
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| mixture | a substance with variable composition
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| alloy | a mixture of elements that has metallic properties
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| pure substance | either a pure element of a compound
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| homogenous mixture | a mixture that is the same throughout
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| solution | a homogenous mixture
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| heterogeneous mixture | a mixture containing regions with differing properties
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| distillation | a separation process that depends on the different boiling points of the substances
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| filtration | separation of a solid from a liquid by using filter paper
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| element symbols | a set of abbreviations for the chemical elements
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| electrons | a negatively charged subatomic particle
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| nuclear atom | a modern concept of the atom as having a dense center of positive charge (the nucleus) surrounded by moving electrons
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| nucleus | the relatively small, dense center of positive charge in an atom
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| proton | a positively charged subatomic particle located in the atomic nucleus
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| neutron | a subatomic particle with no charge located in the atomic nucleus
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| isotopes | atoms with the same number of protons but different numbers of neutrons
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| atomic number | the number of protons in the nucleus of a given atom
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| mass number | the total number of protons and neutrons in the nucleus of a given atom
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| group | a vertical column of elements on the periodic table
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| diatomic molecule | a milecule composed of two atoms
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| ion | an atom or group of atoms that has a positive or negative charge
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| cation | positively charged ion
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| anion | negatively charged ion
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| ionic compound | a compound that results when a metal reacts with a nonmetal to form cations and anions
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| binary ionic compound | a two-element compound consisting of a cation and an anion
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| polyatomic ions | an ion consisting of two or more atoms bound together
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| oxyanion | a polyatomic ion containing at least one oxygen atom and one or more atoms of at least one other element
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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