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Chapter 4 and 15
for eight graders
| Question | Answer |
|---|---|
| the reaction of an acid and a base to form a neutral PH level or solution of a substance | Neutral reaction |
| What is a pH number that is know to be neutral | pH7 |
| any compound that increases the number of hydroxide ions when dissolved in water | base |
| any compound that can reversibly change color depending on conditions such as ph | indicator |
| a value that is used to express the acidity or basicity ( alkalinity) of a system | pH |
| an ionic compound that forms when a metal atom replaces the hydrogen of an acid | salt |
| a homogenous mixture of two or more substances uniformly dispersed throughout a single phase | solution |
| in a solution, the substance that dissolves in the solvent | solute |
| in a solution, the substances in which the solute dissolves | solvent |
| any compound that increases the number of hydronium ions when dissolved in water | acid |
| the ability of a solute to dissolve in a solvent at a certain temperature | solubility |
| what does the solubility of water do? | most solids increase with temperature |
| what happens to a liquid when it has a lower temperature ? | the liquid is less soluble when the temperature is lower |
| what does it mean when the solution can hold more of the solute | unsaturated |
| when a liquid is holding as much of the solute as it can hold | saturated |
| when a liquid holds to much of the solute than it can hold | supersaturated |
| the amount of a particular substance in a given quantity of a mixture, solution, or ore | concentration |
| what are the three ways to make a solute dissolve faster | 1. mixing 2. heating 3. crushing |
| what happens to gases as the temperature is raised? | gases become less soluble in liquids as the temperature is raised |