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Science C. 4 7th
Acids, Bases, and Solutions
| Question | Answer |
|---|---|
| a well-mixed mixture that contains a solvent and at least one solute | solution |
| the part of a solution present in the largest amount | solvent |
| the substance that is present in a solution in a smaller amount and is dissolved by the solvent | solute |
| a mixture containing small, undissolved particles that do not settle out | colloid |
| a mixture in which particles can be seen and easily separated by settling or filtration | suspension |
| a mixture that has only a little solute dissolved in a certain amount of solvent (sap) | dilute solution |
| a mixture that has a lot of solute dissolved in the solvent (syrup) | concentrated solution |
| a measure of how much solute can dissolve in a solvent at a given temperature | solubility |
| when you've added so much solute that no more dissolves, you have a ____________________. | saturated solution |
| if you can continue to dissolve more solute, you have a _____________________. | unsaturated solution |
| has more dissolved solute than is predicted by its solubility at the given temperature | supersaturated solution |
| compounds whose characteristic properties include the kinds of reactions they undergo | acids |
| eat away at other materials | corrosive |
| a compound that changes color when in contact with an acid or base (litmus) | indicator |
| group of compounds that can be identified by their common properties: substance that tastes bitter, feels slippery, and turns red litmus paper blue | bases |
| an atom of hydrogen that has lost its electron | hydrogen ion |
| a negative ion, made of oxygen and hydrogen | hydroxide ion |
| a range of values from 0 to 14 that expresses the concentration of hydrogen ions in a solution | pH scale |
| A ___________ pH tells you that the concentration of hydrogen ions is high. | low |
| A __________ pH tells you that the concentration of hydrogen ions is low. | high |
| a reaction between an acid and a base is called _____________. (close to 7 pH) | neutralization |
| any ionic compound that can be made fromt he neutralization of an acid with a base. | salt |
| The process of ____________ breaks down the complex molecules of foods into smaller molecules. | digestion |
| __________________ is a physical process in which large pieces of food are torn and ground into smaller pieces. | Mechanical digestion |
| ______________ breaks large molecules into smaller ones. | Chemical digestion |
Created by:
jenniferstaton
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