reactions and stuff
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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| Chemistry | Is the study of the properties of matter and how it changes.
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| Element | Is a substance that cannot be broken down into another substance by chemical or physical change.
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| Compound | Is a substance made of two or more elements chemically combined in a specific ratio, or proportion.
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| Mixture | Is made of two or more pure substances - elements, compounds, or both - that are in the same place but not combined as a new material.
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| Solution | Is a well-mixed mixture.
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| Physical change | A change that alters the form or appearance of a material but does not make the material into another substance.
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| Chemical change | A change in matter that produces new substances.
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| Precipitate | A solid that forms from solution during a chemical reaction.
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| Atom | The smallest particle of an element.
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| Molecule | Is the combination of two or more atoms.
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| Chemical bond | The force that holds atoms together.
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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.
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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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