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MS. DAVIDSON CHEMISTRY REVIEW

Chemistry Vocabulary Review   27pts Name_________________________Period__________
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Across
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compound that contains carbon, excluding carbonates and oxides
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When molecules are moving form greater to lesser concentration in an attempt to reach a balanced state or in terms or chemical reactions
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subatomic particle with no charge and a mass about equal to a proton and found in the nucleus
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a measure of the force exerted by a gas above a liquid in a sealed container
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is a substance of two or more different atoms bonded together, which can be broken down into elements.
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Have full valence shells and are inert. The last group on the right of the periodic table.
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matter that has the same composition and properties throughout
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React with acids to neutralize their properties.
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Have a sour taste React with bases to neutralize their properties
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one reactant that is broken down into two or more simpler products. Heat is often used to drive this type of reaction.
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a liquid substance capable of dissolving other substances
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change of matter from a gas to a liquid state
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a substance that has mass and occupies space.
Down
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is a chemical reaction whereby an acid and a base react to form a salt.
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atoms of the same element with the same atomic number but with different numbers of neutrons
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number of protons and neutrons (nucleons) in the nucleus of an atom
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the ability of one substance to dissolve in another at a given temperature and pressure
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A table that shows the elements, their atomic number, symbol, and average atomic mass; elements with similar chemical properties are grouped together.
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process that leads to the transformation of one set of chemical substances to another.
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describes a reaction that absorbs energy from the surroundings, its products contain more energy than its reactants.
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organic molecule composed of only carbon and hydrogen atoms
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is equal to the number of protons found in the nucleus.
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scale a range of numbers used to describe how acidic or basic a solution is; ranges from 0 (most acidic) to 14 (most basic)
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A substance that initiates or accelerates a chemical reaction, by lowering the activation energy needed.
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atom that has a positive or negative charge
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a chemical substance that is present at the start of a chemical reaction
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a subatomic particle that has a positive charge and that is found in the nucleus of an atom
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Smallest unit of an element that still retains the properties.