The solution:
It is a homogeneous system that consists of a solvent (as water) and a solute (as table salt).
" A solution requires a solvent and a solute.
" Speed of dissolution increases by stirring and heating.
" The solution is a mixture, in which its components (the solute and solvent) can be separated by physical means.
Examples of solutions:
1- Table salt in water.
2- Sugar in water.
Q1: Give reason:
Salt solution in water is a mixture not a compound.
" Because its components can be separated easily by evaporation.
Q2: What happens in the following cases?
1- Stirring some of chalk powder in a beaker containing water.
" Chalk does not dissolve in water.
2- Exposing a solid surface to evolved water vapour.
" Water vapour is condensed .
It is a homogeneous system that consists of a solvent (as water) and a solute (as table salt).
" A solution requires a solvent and a solute.
" Speed of dissolution increases by stirring and heating.
" The solution is a mixture, in which its components (the solute and solvent) can be separated by physical means.
Examples of solutions:
1- Table salt in water.
2- Sugar in water.
Q1: Give reason:
Salt solution in water is a mixture not a compound.
" Because its components can be separated easily by evaporation.
Q2: What happens in the following cases?
1- Stirring some of chalk powder in a beaker containing water.
" Chalk does not dissolve in water.
2- Exposing a solid surface to evolved water vapour.
" Water vapour is condensed .
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