Biology Chapter 2-3
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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Polar | describes a molecule with opposite charges on opposite ends
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Hydrogen Bond | the intermolecular force occurring when a hydrogen atom that is bonded to a highly electronegative atom of one molecule
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Cohesion | the force that holds the molecules of a single material together
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Adhesion | the attractive force between two bodies of different substances that are in contact with each other
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Capillarity | the attraction between molecules that results in the rise of
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Solution | a homogeneous mixture throughout which two or more substances are uniformly dispersed
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Solute | the substance that dissolves in the solvent in a solution
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Solvent | the substance in which the solute dissolves in a solution
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Concentration | the amount of a particular substance in a given quantity of a mixture, solution or ore
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Saturated Solution | a solution that can not dissolve any more solute under the given conditions
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Aqueous Solution | a solution in which water is the solvent
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Hydroxide Ion | the OH ion
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Hydronium Ion | an ion consisting of a proton combined with a molecule of water H3O+
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Acid | Any compound that increases the number of hydronium ions when dissolved in water- Acids turn blue litmus paper red and reacts with bases and some metals to form salts
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Base | any compound that increases the number of hydroxide ions when dissolved in water bases turn red litmus paper blue and react with acids to form salts
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pH Scale | A range of values that are used to express the acidity or basicity of a system each whole number on the scale indicates a tenfold change in acidity 7=neutral 1=acid 14=base
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Buffer | a solution made up of a weak acid and its conjugate base that neutralizes smaller amounts of acids or bases added to it
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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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Created by:
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