Labels fell off two bottles believed to contain solid sodium chloride or solid sodium carbonate. Describe a simple experiment that allows you to determine which bottle contains which solid. For solid sodium chloride, using distilled water will make it an aqueous solution. Just like before, using red and blue litmus paper will only indicate that sodium chloride is neutral. The same can be done for sodium carbonate since it is soluble in distilled water, making it easy to determine whether it is an acid or a base when using litmus paper. In this case, sodium carbonate is a base, so the red litmus paper will turn blue when sodium carbonate solution is dripped onto it.3. Malachite has the following formula: Cu₂(CO₃)(OH)₂a) Based on your experiments, what is the formula of the black solid? The formula of the black solid is Copper (ii) Oxide CuO.b) Based on your experiments what is the formula of the colorless gas that is released when malachite is heated? The formula of the colorless gas that is released is carbon dioxide,