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Grade 8 Ch L3
Science Explorer Chemical Interactions Ch 3
| Question | Answer |
|---|---|
| acid | a substance that tastes sour, reacts with metals and carbonates, and turns blue litmus paper red |
| base | a substance that tastes bitter, feels slippery, and turns red litmus paper blue |
| colloid | a mixture with small, undissolved particles that do not settle out |
| concentrated solution | a solution with a lot of solute dissolved in it |
| corrosive | the way in which acids react with some metals so as to eat away at some metals |
| digestion | the process that breaks down complex molecules of food into smaller molecules |
| dilute solution | a solution with only a little solute dissolved in it |
| indicator | a compound that changes color in the presence of an acid or a base |
| neutralization | a reaction between an acid and a base yielding a solution that is not as acidic or basic as the starting solutions were |
| pH scale | a range of values used to express the concentration of hydrogen ions in a solution |
| saturated solution | a mixture that contains as much dissolved solute as possible at a given temperature |
| solubility | a measure of how much solute can dissolve in a given solvent at a given temperature |
| solute | the part of a solution present in the lesser amount and is dissolved by the solvent |
| Solution | a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout |
| solvent | the part of a solution present in the largest amount and dissolves the solute |
| suspension | a mixture in which particles can be seen and easily separated by settling or filtration |
Created by:
DawnSimpson
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