What makes a question able to be answered by science?

Which is a characteristic of mixtures?

Suppose you got a low yield of benzoin from your benzoin condensation reaction and thus only have 0.300 g of benzoin to use as the starting material for this reaction. how much concentrated nitric acid should you add? (concentrated nitric acid is 15.8 m). write your answer in the form x. xx ml

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.