Vocab Chapter 4
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 from one state (solid or liquid or gas) to another without a change in chemical composition
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| Chemical Change | a change that occurs when one or more substances change into entirely new substances with different properties
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| Mixture | (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)
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| Substance | that which has mass and occupies space
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| Physical Property | a characteristic that can be observed or measured without changing the identity of the substance
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| Chemical Property | a property used to characterize materials in reactions that change their identity
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| Density | Mass/volume the amount of matter in a given space
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| Boiling Point | the temperature at which a liquid boils at sea level
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| Melting Point | the temperature at which a substance changes from a solid to a liquid
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| Solubility | the ability of one substance to dissolve in another at a given temperature and pressure
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| Law of Conservation of Matter | states that matter is neither created nor destroyed, only changed in form
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| Law of Conservation of Energy | the law that states that energy cannot be created or destroyed but can be changed from one form to another
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| Endothermic | describes a process in which heat is absorbed from the environment
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| Reactivity | the ability of a substance to combine chemically with another substance
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| Combustibility | the ability to burn
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| Exothermic | chemical reaction in which energy is primarily given off in the form of heat
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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.
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.
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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