Vocabulary for Classification of Matter Unit 1
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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| acid | a solution with a pH less than 7
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| atom | the smallest part of an element that has the chemical properties of that element
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| balanced chemical equation | a chemical equation that has the same number of each kind of atom in the reactants as in the products
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| base | a solution with a pH greater than 7
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| boiling point | the temperature at which a liquid boil
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| brittle | tending to break or shatter easily
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| Chemical change | a change in matter that results in the formation of one or more new substances that have new chemical and physical properties
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| Chemical equation | a way of using chemical formulas and chemical symbols to describe the changes that occur in a chemical reaction
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| Chemical formula | a way of using chemical symbols & subscripts to identify the number of atoms of each element in a molecule
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| Chemical property Chemical symbol: a shorthand name for an element | a characteristic that describes how a substance will react (combine) or not react chemically with other substances
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| Chemical reaction | a chemical change that results in the formation of one or more new substances
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| Chemical symbol | a shorthand name for an element
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| Coefficient | a number written before a chemical formula that shows how many molecules of that substance are involved in a chemical reaction
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| Density | a measure of the mass of a substance compared to its volume
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| Family | the elements found in a vertical column in the periodic table of elements
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| Indicator | a substance that can be used to determine if a solution is acidic, basic, or neutral
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| Malleable | able to be hammered into different shapes
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| Compound | a pure substance composed of two or more elements that are chemically combined
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| Conductor | a material that allows heat or electricity to move through it easily
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| Ductile | able to be drawn or stretched into thin wire
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| Element | a pure substance that cannot be changed into a simpler substance
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| Heterogeneous mixture | a mixture that is not uniform throughout
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| Homogeneous mixture | a mixture in which the substances are evenly mixed
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| Law of conservation of matter | the law which states that in a chemical reaction, matter is neither created nor destroyed
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| Luster | the tendency to reflect light
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| Matter | anything that has mass and takes up space
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| Melting point | the temperature at which a solid changes to a liquid
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| Mixture | a combination of two or more pure substances
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| Nonconductor | a material that does not allow heat or electricity to move through it easily
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| pH | a measure of how acidic or basic a substance is
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| Physical property | a characteristic of a substance that can be observed and measured without changing the substance
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| Pure substance | a substance made up of only one kind of atom or molecule
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| State of matter | the physical form in which matter exists
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| Molecule | a particle that forms when two or more atoms are held together by a chemical bond
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| Neutral solution | a solution with a pH of 7
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| Period | a horizontal row of elements in the periodic table
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| Periodic Table of elements | a chart that arranges elements according to their chemical and physical properties
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| pH scale | a scale, ranging from 0 to 14, that measures how acidic or basic a solution is
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| physical change | a change that alters the physical properties of a substance without changing the composition of the substance
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| Precipitate | a solid substance that forms when two solutions are combined
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| Product | a new substance formed by a chemical reaction
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| Reactant | a substance that is broken apart or joined with another substance by a chemical reaction
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| Solution | a homogeneous mixture in which the particles are too small to be seen easily
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| Subscrip | a number, written below and to the right of an element, that shows how many atoms of each element are in a molecule
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Created by:
mbowles
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