Chemical Reactions Review
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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| Chemical Reactions | the process by which chemical changes occur (atoms are rearranged and chemical bonds are broken and formed)
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| Chemical Change | a change of one substance into another substance (molecular level)
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| Physical Change | a change of one substance (states of matter or energy)
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| Reactants | substances present at the beginning of the chemical reaction
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| Products | substances formed by a chemical reaction (end)
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| Law of Conservation of Mass | in a chemical reaction atoms are neither created nor destroyed (all atoms present in the reactants are present in the products)
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| Bond Energy | energy associated with bonds
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| Exothermic Reactions | reaction in which energy is released
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| Endothermic Reactions | reaction in which energy is absorbed
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| Evidence of chemical reactions: | •Color change•Formation of a precipitate (solid product)•Formation of a gas•Temperature change
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| Rates of chemical reactions can vary based on: | •Concentration•Surface area•Temperature
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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.
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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:
cemarcum
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