Why, when establishing the baseline, are you asked to add 1 ml of water? why add 10 ml of sulfuric acid to your peroxide samples if there was no catalase to denature? explain! ?

Hydrogen chloride or most commonly known as hydrochloric acid and muriatic acid is a diatomic compound that consists of hydrogen and chlorine. It is prepared industrially by the combustion of hydrogen, H2, in chlorine, Cl2. H2 + Cl2 -> 2HCl. There are also many metallic chlorides that release hydrogen chloride gas, HCl, when warmed with concentrated sulfuric acid, H2SO4. Mostly, it is prepared by heating it with sulfuric acid and sodium chloride. The reaction is NaCl + H2SO4 -> HCl + NaHSO4. Adding sulfuric acid enables the reaction to proceed further and it acts as a catalyst in the reaction.

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.