An experiment is carried out to determine the percentage composition by mass of sand and copper (II) sulphate in a mixture. A 10.0 g portion of the mixture is stirred in 200 cm3 of distilled water, until no further change takes place. The resulting mixture is filtered into a clean beaker using a funnel fitted with filter paper.
- both b and d.
-since b and d are the closest coastlines then that makes it the most affected.
a solution is always transparent, light passes through with no scattering from solute particles which are molecule in size. the solution is homogeneous and does not settle out. a colloid is intermediate between asolution and a suspension. while asuspension will separate out a colloid will not.
the answer is c.the valence of the atoms combine .