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15 Cards in this Set
- Front
- Back
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What is an atom?
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A very small particle that makes up most kinds of matter and consists of electrons, protons, and neutrons.
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What is matter?
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Anything that has mass and takes up space.
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What are elements?
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Pure substances that cannot be changed into simplier substances. Composed of only one type of atom.
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What are compounds?
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Pure substances that contain two or more elements.
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What are mixtures?
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A combination of substances that are mixed together. Ex: Trail mix and salad
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What is the Law Of Conservation of Matter?
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Matter is neither created nor destroyed.
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What are the physical properties of metals (5)?
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Luster (shine), Conductors (Heat and electricty move through), Malleable(ability to be hammered/bent into shape), Ductile(wire drawn through),& high density(Heavy)
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What are the physical properties of nonmetals (3)
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Dull, nonconductors (heat and electricity do not move through easily, & Brittle (Break easy)
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What is pH?
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A measure of concentrationof solutions of acids and bases on a scale of 1-14.
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What is melting point?
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it is the temperature at which a solid can change to a liquid.
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What is boiling point?
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is the temperature at which a liquid changes into a gas.
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What are some pH indictators?
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Litmus paper, pH paper, cabbage juice, and Phenolphthalein
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What are some indicators of a chemical change?
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Color change, temperature change, precipitate formation, and gas formation (fizzing and bubbling)
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NA
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Sodium
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Cl
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Chlorine
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