The solutionالمحلول
The solution:
It is a homogeneous system that consists of a solvent and a solute .نظام متجانس يتكون من مذيب ومذاب
" A solution consists of a solvent مذيب and a solute.
" Speed of dissolution increases by stirring and heating.
" The solution is a mixture, in which its components (the solute مذاب and solvent) can be separated by physical means.
* solvent المذيب : is a liquid substance.
*solute المذاب : is a solid substance
Examples of solutions:
1- Table salt ( sodium chloride )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 ( calcium carbonate) الطباشير does not dissolve in water.
2- Exposing a solid surface to evolved water vapour.
" Water vapour is condensed
The solution:
It is a homogeneous system that consists of a solvent and a solute .نظام متجانس يتكون من مذيب ومذاب
" A solution consists of a solvent مذيب and a solute.
" Speed of dissolution increases by stirring and heating.
" The solution is a mixture, in which its components (the solute مذاب and solvent) can be separated by physical means.
* solvent المذيب : is a liquid substance.
*solute المذاب : is a solid substance
Examples of solutions:
1- Table salt ( sodium chloride )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 ( calcium carbonate) الطباشير does not dissolve in water.
2- Exposing a solid surface to evolved water vapour.
" Water vapour is condensed
