Select all answer choices that were included in your response. The acid being analyzed was not identified, so the balanced chemical equation could not be written. The volume of the pipet used to transfer the acid was not recorded, which makes it impossible to determine the molarity of the acid. The buret readings were not recorded to the nearest 0.01 mL. Units were not recorded in the data table. The buret was not rinsed with base before filling, which could dilute the base solution.

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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.