vocab science
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 | The mass of the products of a chemical reaction must be the same as the mass of the rectants in that reaction.
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| Physical Change | change in the physical properties of a substance, as size or shape
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| Chemical Change | 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 chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions
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| Chemical Equation | A chemical equation is the 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 chemical reaction is a process that leads to the transformation of one set of chemical substances to another
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| Reactions (in a chemical equation) | the reactant entities are given on the left hand side and the product entities on the right hand side
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| Products (in a chemical equation) | In a chemical reaction, substances (elements and/or compounds) called reactants are changed into other substances (compounds and/or elements) called products
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| cofficient (in a chemical equation) | In writing chemical equations, the number in front of the molecule's symbol (called a coefficient) indicates the number of molecules participating in the reaction.
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| Subscript (in a chemical equation) | The subscripts tell you how many atoms of each element are in the equation
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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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