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4th weeks science
| Question | Answer |
|---|---|
| A mixture that has the same composition, color, density and taste throughout | solution |
| 2 examples of solutions | air, brass |
| a heterogeneous mixture whose particles never settle | colloid |
| 2 examples of colloids | gelatin, fog |
| a heterogeneous mixture containing a liquid in which visible particles settle | suspension |
| 2 examples of suspension | mayo, mud |
| the substance being dissolved | solute |
| 3 examples of solutes | carbon dioxide, sugar, cocoa powder |
| the substance doing the dissolving | solvent |
| 1 example of a solvent | water |
| the maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature | solubility |
| how can solubility help you identify a substance | it gives you the properties and characteristics |
| what are 3 factors that affect solubility | temperature, pressure, type of solvent |
| list 4 properties of acids | taste sour, conduct electricity, corrosive, reacts with certain metals |
| 4 examples of products that contain acids | soft drinks, vinegar, tomatoes, blood plasma |
| 4 properties of bases | taste bitter, feel slippery, corrosive, can conduct electricity |
| 4 examples of products that contain bases | milk, egg whites, baking soda, drain cleaners |
| pH for acids | below 7 |
| pH for bases | above 7 |
| a chemical reaction between an acid and a base that takes place in a water solution | neutralization |