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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Chemical Reaction
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Two or more substances react together to give a new substance (usually see and energy change or change in appearance).
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Topic 1
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Compound
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A substance formed by two or more elements joined together chemically.
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Topic 1
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Mixture
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Two or more substances mixed together but not chemically joined.
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Topic 1
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Solute
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The substance that dissolves. (eg. sugar)
NOTE: Can be solids, liquids or gases. |
Topic 1
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Solvent
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A liquid in which a substance dissolves. (eg. tea)
NOTE: Are always liquids. |
Topic 1
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Solution
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The solute dissolved in the solvent. (eg. sugary tea)
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Topic 1
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Catalyst
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A substance which speeds up a chemical reaction but remains itself unchanged.
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Topic 2
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Atomic Number
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This is a unique number that is different for every element. It is the same as the number of protons or electrons.
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Topic 3
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Mass Number
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It is the same as the number of protons + the number or neutrons.
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Topic 3
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Isotopes
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Same atomic number, different mass number. Same number of protons or electrons, different number of neutrons.
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Topic 3
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Relative Atomic Mass
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The average mass of the isotopes of an element. Relative atomic mass can be shortened to r.a.m.
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Topic 3
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Diotomic molecule
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A molecule with two atoms.
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Topic 4
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Covalent Bond
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Two positive nuclei are held together by their common attraction for the shared electrons in the bond.
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Topic 4
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