BALANCING CHEMICAL EQUATIONS
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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| Subscript | small number written to the right of an element; tells you how many atoms of that element you have. Chemical reaction
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| Law of conservation of matter | says that matter cannot be created or destroyed.
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| Reactants | substances used up in a chemical reaction.
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| Products | new substances made in a chemical reaction.
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| Coefficient | large number placed before a molecule in a chemical reaction; this number “multiplies each element in that formula”
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| Chemical formula | identifies each element by its chemical symbol and indicates the number of atoms of each element found in each discrete molecule of that compound.
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| Subscript | small number written to the right and below the chemical symbol if a molecule contains more than one atom of a particular element.
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| Combustion | burning; a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light.
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| Balanced equation | the law of conservation of matter demands that we have the same numbers of each element’s atoms on both sides of 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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Created by:
Ruth.Miller
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