Aqueous solutions of compounds containing element x are blue. element x could be

The element of x could be copper. Aqueous solution for your information is defined as a solution in which the solvent is water and it is usually shown in chemical equations by appending (aq) to the relevant chemical formula. The answer in this question is copper.

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.

No because it not possibly