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200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Chemistry Terms Chemical Reactions Involving Atoms Molecules & Compounds
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What is an atom
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It is the smallest basic unit of matter
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It is a particular type of atom. Like oxygen (O) or carbon (C).
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What is an element?
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It is an atom that has lost or gained electrons and has either a positive or negative charge.
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What is an ion
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Two or more different types of elements bonded together in certain ratios. An example includes H 2 O
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What is a compound?
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They are atoms bonded together by covalent bonds.
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What are molecules
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A process where new substances are formed when bonds are made or broken.
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What is a chemical reaction?
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They are found on the left side of a chemical reaction. Example: left side right side H 2 + O H 2 O
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What are reactants?
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DAILY DOUBLE
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These are found on the right side of a chemical equation. Example: left side right side H 2 + O H 2 O
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What are products?
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It is a chemical reaction that gives off heat/energy.
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What is an exothermic reaction?
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These have the same number of protons and electrons.
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What are atoms?
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These do not have the same number of protons and electrons.
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What are ions?
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An atom that has one proton and one electron is an atom of this element.
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What is hydrogen?
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It is an atom that has 11 protons and 11 electrons.
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What is sodium?
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The electrons found here are the electrons that are involved in bonding.
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What are the electrons found in the outer energy level?
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The image above is made of these 2 atoms.
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What are hydrogen?
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It is this type of bond that forms between water molecules that allows you to put many drops of water on a penny.
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What is a hydrogen bond?
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These cabon based molecules are used mainly for storing energy.
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What are lipids?
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These carbon based molecules provide you with the energy your body needs.
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What are carbohydrates?
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These carbon based molecules store genetic information.
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What are nucleic acids?
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It is the type of bond formed above & this is the charge magnesium forms.
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What is an ionic bond? What is a positive charge?
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