8th grade Chemistry
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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| Substance | A number written below and to the right of a chemical symbol in a formula
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| Double Replacement | when ions in two compounds switch places
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| Activation Energy | is the minimum amount of energy required for substances to react
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| Chemical Reaction | process by which one or more substances undergo change to produce one or more new substances.
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| The Law of Conservation of Mass | states that mass cannot be created or destroyed in ordinary chemical or physical changes.
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| Decompostion | a single compound breaks down to form tow or more simpler substances.
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| Exothermic | energy is released.
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| Endothermic | energy is absorbed.
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| Synthesis | two or more substances combine to form a single compound.
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| Chemical Formula | descibes a substance using chemical symbols and numbers.
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| Coefficient | a number written to the left of a chemical symbol or formula.
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| Single Replacement | one element replaces another that is part of a compound. (Loner)
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| Chemical Equation | is a shorthand description of a chemical reaction.
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| Reactent | the starting material.
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| Product | the new substance formed.
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| Catlyist | speeds up a reation.
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| Inhibitor | slows down a reation.
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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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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:
xoCCox8
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