chapter 2 vocab
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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matter | substance in which all materials are made
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pure substance | A sample of matter, either an element or a compound, that consists of only one component
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element | 1.One of the simplest or essential parts or principles of which anything consists, or upon which the constitution or fundamental powers of anything are based
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compound | combinations of two or more elements
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mixture | a mixture is a material system made up by two or more different substance which are (mixed) together but are not combined chemically.
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homogeneous mixture | A substance that is uniform in composition
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heterogeneous mixture | consists of visibly different substances or phases
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distillation | a unit operation, or a physical separation process, and not a chemical reaction.
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physical changes | any change not involving a change in the substance's chemical identity
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physical properties | used to observe and describe matter
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chemical changes | bonds are broken and new bonds are formed between different atoms
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chemical properties | describes its "potential" to undergo some chemical change or reaction by virtue of its composition.
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law of conservation of matter | A principle in classical physics stating that the total mass of an isolated system is unchanged by interaction of its parts.
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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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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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