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scients 2012
for grade 7 scients test
| Question | Answer |
|---|---|
| what is a pure sudstance? | matter that contains only one kind of particle. |
| what is a mixture? | matter that contains tow or more pure substances mixed together. |
| what is a mechanical mixture/heterogeneous mixture? | a mixture with different parts that you can see. |
| what is a solution/homogeneous mixture? | a mixture that looks like a single pure sudstance. |
| what does dissolve mean? | to mix one type of matter into an other type of matter to make a new matter. |
| what is a solute? | the smaller part of a solute into witch the solutes dissolve. |
| what does solvent mean? | the larger part of a solution, the part of a solution into which the solutes dissolve. |
| what does dissolving mean? | mixing completely with a solvent to form a solution. |
| why is water called the universal solvent? | because it dissolves more substances than any other solvent. |
| what is a concentratated solution? | a solution with a large amount of solute particals in a given volume of solution. |
| what is a dilute solution? | a solution with a small amount of solute particals in a given volume of solution. |
| what does concentration mean? | the amount of a solute in a solution. |
| what is a concentratated solution? | a solution with a large amount of solute particals in a given volume of solution. |
| what is a dilute solution? | a solution with a small amount of solute particals in a given volume of solution. |
| what is a concentratated solution? | a solution with a large amount of solute particals in a given volume of solution. |
| what is a dilute solution? | a solution with a small amount of solute particals in a given volume of solution. |
| what does sturated solution mean? | a solution in which no more solute can dissolve. |
| what does concentration mean? | the amount of a solute in a solution. |
| what does sturated solution mean? | a solution in which no more solute can dissolve. |
| what does unsturated solution mean? | a solution which can be dissolved. |
| what does unsturated solution mean? | a solution which can be dissolved. |
| what does sturated solution mean? | a solution in which no more solute can dissolve. |
| what does unsturated solution mean? | a solution which can be dissolved. |
| what does unsturated solution mean? | a solution which can be dissolved. |
| what does solubillty mean? | a measure of how much solute can dissolve in a certan solvent to form a saturated solution. |
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