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Mixtures and Solutions
Transcript of Mixtures and Solutions
doesn't dissolve in the liquid.
It ends up with 'bits' floating about (ew!)
Like this What about just saltwater?
This is a solution because the salt has dissolved in the water to make a clear liquid. A liquid that a solid dissolves in is called a solvent. e.g. in saltwater, the solvent is water. A solute is the solid that dissolves in the solvent. e.g. the salt in saltwater is the solute How do we separate mixtures? FILTER... this is good because we wouldn't want to drink this... But what about separating solutions?
This is not so simple...but we can do it! Evaporate the solvent (e.g. the water in salt water) What happened there? Revisiting Solvents
water isn't the only solvent
water cannot dissolve every solute, Sometimes we need a different solvent Acetone acts as a solvent in nail varnish remover. Water would not dissolve the varnish but acetone will. ?