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23/24 Chem A Exam Review

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Across
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A scientific statement that is accepted as fact
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A state of matter that has a definite volume but takes the shape of its container
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Made up of 2 or more types of atoms bonded together
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The application of scientific knowledge
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Made up of one type of atom
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A separation technique that uses a difference in boiling points to separate two liquids
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A state of matter that takes the shape and volume of its container
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A mixture that is not uniformly combined
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A state of matter that has both a definite shape and volume
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A judgement based on information gathered during an experiment
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A measure of the effect of gravity on an object
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Data that describes with words
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A subatomic particle with no charge
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The smallest unit of matter that retains the properties of the matter
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An atom with a charge
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Gallium melts at 30 C. This is an example of a ________ property
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Anything with mass that takes up space
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The mass to volume ratio of a substance
Down
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A subatomic particle with a positive charge
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An atom that has lost electrons and now has a positive charge
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Brass and stainless steel are examples of a type of homogeneous mixture called an _______.
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An educated guess at what will be observed
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Data that uses numerical values
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A mixture that has uniform composition
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A measure of the amount of matter
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A subatomic particle with no mass
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The center of an atom where protons and neutrons are
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Things that can be seen with the naked eye
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Equal to 1/100 of a meter
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Made up of two or more atoms or compounds combined together
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Atoms with the same number of protons but a different number of neutrons
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Oxygen gas is flammable. this is an example of a _________ property
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The element with 20 protons
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An explanation based on current data from many experiments
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An atom that has gained electrons