Chapters 1-4 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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| physical change | a change in the physical properties or a change in state without changing the composition
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| chemical change | different substances are formed that have different properties and composition from the original material
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| Energy depends on __________. | mass
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| potential energy | stored energy; the energy an object possesses due to its position
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| kinetic energy | the energy matter possesses as a result of its motion
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| SI unit for energy | joule (j)
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| chemical properties | describe the ability of a substance to interact with other substances to form new substances
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| physical properties | inherent in the substance to interact with other substances without altering the composition of the substances
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| compound | a substance that contains two or more elements
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| 7 diatomic molecules | H, N, O, F, Cl, Br, I
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| properties of nonmetals | not lustrous, poor conductors of heat and electricity
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| properties of metals | high luster, good conductors of heat and electricity, malleable
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| Chemical formulas are a combination of ____________. | symbols
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| atom | the smallest particle of an element
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| element | a fundamental substance that cannot be broken down by chemical means to simpler substances
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| density | mass divided by volume
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| heat | the flow of energy due to a temperature difference
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| SI unit for temperature | Kelvin (K)
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| matter | hass mass, occupies space
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| theory | an experiment producing consistent results over a long period of time verifies a theory
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| solids | definite shape and volume, independent of container
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| liquids | definite volume, not a definite shape
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| gas | indefinite volume, no fixed shape, always fills the shape of the container
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| pure substance | definite, fixed composition, is either an element or a compound
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| mixture | combination of two or more substances
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| SI unit for volume | liter (L), milliliter (mL)
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| SI unit for length | meter (m)
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| SI unit for mass | kilogram (kg)
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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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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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