(Q).
Given the fact that: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH. Answer the question: James wants to create a solution that is more acidic than others, so his concentration of hydrogen ions will be higher or lower?
(A).
higher

(Q).
Given the fact that: Water becomes more dense when it is colder and when it has more salt. Answer the question: Given two equal measures of water by volume, which would be lighter ocean water or distilled water??
(A).
distilled water?

(Q).
Given the fact that: In bigger atoms, valence electrons are farther from the nucleus. Answer the question: In science class, kids learned about how when atoms are larger, the distance between the valence electrons and the nucleus is bigger or smaller?
(A).
bigger