Difference between calcium sulfide and calcium sulfate.

Calcium sulfide is a chemical compound having formula CaS. While  Calcium sulfide is inorganic compound g fomlaCaSO4.

Explanation:

calcium sulfide is use in  preparation of  hydrogen sulfide, luminous pain and as a depilatory in cosmetics while  calcium sulfate is used as desiccant. calcium sulfides is  white material crystallizes in cubes like rock salt while calcium sulfate has three different crystalized forms known as hemihydrate (CaSO4⋅12H2O) , anhydrate (CaSO4) and as  gypsum (CaSO4⋅2H2O). hope this explanation will be helpful for you

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.

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