Science Lannom p.5
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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| Physical Change | a usually reversible change in the physical properties of a substance, as size or shape
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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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| 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 | one of a class of substances that cannot be separated into simpler substances by chemical means.
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| Chemical Formula | a representation of a substance using symbols for its constituent elements
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| Element (Diatomic) Molecule | Diatomic molecules are molecules composed only of two atoms, of either the same or different chemical elements.
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| Compound Molecule | a compound made of 2 or more nonmetal elements
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| Chemical Equation | A chemical equation is symbolic representation of a chemical reaction where the reactant entities are given on the left hand side and the product entities on the right hand side.
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| Chemical Reaction | A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction
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| Reactants | A substance that takes part in and undergoes change during a reaction
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| Coefficient | a multiplicative factor in some term of an expression (or of a series); it is usually a number
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| Subscript | a number, figure, symbol, or indicator that appears smaller than the normal line of type and is set slightly below or above it
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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