ATOMIC VOCAB
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Define: Laws of Conservation of Mass | Nothing is ever created or destroyed, only changed.
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| Define: Physical Change | (Dictionary.com) A usually reversible change in the physical properties of a substance, as a size or shape.
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| Define: Chemical Change | (Dictionary.com) A usually irreversible chemical reaction involving the rearrangement of the atoms or one or more substances and a change in their chemical properties and composition resulting in the formation of at least one new substance.
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| Define: Element | Substance that cannot be broken down into simpler substances.
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| Define: Chemical Formula | (Dictionary.com) A representation of a substance using symbols for its constituent elements.
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| Define: Element Molecule (Diatomic) | Molecule of only one type of atom.
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| Define: Chemical Equation | Shorthand form for writing what reactions are used and what products are formed in a chemical reaction. Sometimes shows whether energy in produced or absorbed.
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| Define: Reactant (In a chemical equation) | Substances that go through a chemical change or a substance that exist before a chemical reaction begins.
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| Define: Products (In a chemical equation) | Substances that result from a chemical reaction.
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| Define: Coefficient (In a chemical equation) | (www.visionlearning.com) The coefficient is the number in front of a molecule symbol.
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| Define: Subscript (In a chemical equation) | (www.ndt-ed.org) If more than one atom of a specific element is in a molecule, it is followed by a number to indicate the number of atoms of the element.
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| Define: Compound Molecule | Compound made up out of more than one type of atom.
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| Define: Chemical Reaction | Process that produces chemical change resulting in new substances that have properties different from those of the original substance.
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