uses symbols and chemical formulas to show a chemical reaction occurred
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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| plus sign | means to combine or and
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| arrow | means produces, yields or make
points to the product
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| chemical equation | uses symbols and chemical formulas to show that a chemical reaction occurred
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| reactant | the substances that are broken down
(on the left side of arrow)
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| products | the new substances made in a chemical reaction
(on the right side of arrow)
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| Fe+S---> FeS | reactants on the left( Fe and S)
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| Fe + S ----> FeS | products on the right (FeS)
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| law of conservation of matter ( mass ) | states that matter cannot be created or destroyed
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| Coefficient | Tells number of molecules number (in front of formula- 2 FeS)
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| subscript | Tells number of atoms ( small number written below and after)
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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.
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.
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:
armoni
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