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Answer:
Explanation:
a) A solution is a homogeneous mixture of two or more components. The dissolving agent is the solvent. The solute is completely dissolved in the solution, so it can´t be filtered. They are always transparent, and light can pass through them.
Example: Sugar and water
The particles in suspensions are larger than those found in solutions. Components of a suspension can be separated by filtering. If you let it sit, the components will settle out.
(Oil and water eventually separate from each other; the oil sits at the top).
Example: Oil and water
A colloid is intermediate between a solution and a suspension. While a suspension will separate out a colloid will not. However, it is not a solution because it's not transparent, and light is dispersed by collidal particles. It can also have a cloudy appearance.
Example: milk
b) 0ºC = 273 K
i) 250K = -23,15ºC 250 K - 273 = -23 ºC
ii) 470K = 197ºC 470K - 273 = 197ºC
c) In most cases, as the temperature increases, the solubility of a salt does too. This is because as the temperature risens, the ionic bonds get slightly weaker and so the ions can take up the space between the molecules of water.
Even so a higher temperature means more kinetic energy, which makes the ions move faster.