science vocabulary
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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| Law of Conservation of Mass | a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
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| Physical Change | a usually reversible change in the physical properties of a substance, as size or shape
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| Chemical Change | a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance
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| Element | substance that cannot be broken down into simpler sbstances
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| Chemical Formula | a representation of a substance using symbols for its constituent elements
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| Element (Diatomic) Molecule | a molecule Made up of two atoms
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| Compound Molecule | A molecule that has more than 1 element.
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| Chemical Equation | shorthand form for writing what reactants are used and what products are formed in a chemical reaction; sometimes shows whether energy is produced or absorbed.
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| Chemical Reaction | process that produces chemical change, resulting in new substances that have properties different from those of the original substances.
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| Reactants (of a chemical equation) | substance that exists before a chemical reaction begins.
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| Products (of a chemical equation) | substance that formms as a result of a chemical reaction
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| Coefficient (in a chemical equation) | The number of molecules that is the number that is on the left side of the molecule
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| Subscript (in a chemical equation) | the nmber of atoms of each element on a molecule.
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
Gloria Nunez
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