Salt is added to water. you speed up dissolving by stirring the salt into the water. then your teacher challenges you to separate the salt from the water. you know that the salt and water have formed a solution and that the salt is distributed throughout the glass of water. what would be the best way to separate the salt and the water?

a) collect the slat as it floats in the water.
b) heat the solution to boiling and evaporate off the water.
c) spin the solution at a high speed to separate out the salt.
d) pour the solution through filter paper to filter out the salt.

the answer would be B). Heat the solution to boiling and evaporate off the water.

can you list the answers so i can answer

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.