Answer:
The mixture 1/ must be homogeneous where there is one or more dissolved salts; 2/ should only contain one liquid component.
Explanation:
This method drives off the liquid components from the solid components. The process typically involves heating the mixture until no more liquid remains. Prior to using this method, the mixture should only contain one liquid component, unless it is not important to isolate the liquid components. This is because all liquid components will evaporate over time. This method is suitable to separate a soluble solid from a liquid.
Note : In many parts of the world, table salt is obtained from the evaporation of sea water. The heat for the process comes from the sun.
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Answer: A. Endothermic
Explanation:
In an endothermic reaction, heat is sucked in from the surrounding area by the reactants so that they may use it to react and form new products. This will therefore reduce the temperature in the said surrounding by the amount that the reaction needed.
This is what ice does when it melts. It sucks in the heat surrounding the area and then melts but leaves the area colder. For instance, putting ice in water ensures that the ice melts but because it sucked in the heat from the water to do so, the water gets colder as a result.
What this is??????????????????
The scientific process has to adapt to what the experiment is.
