2. A student tested the pH of an unknown solution and the reading was 13.5. Which statement is true?
A. The solution is a strong base.
B. The solution is a strong acid.
C. The solution is a weak base.
D. The solution is a weak acid.

When a neutrally charged atom loses an electron to another atom, the result is the creation of a. two charged atoms. b. two negatively charged atoms. c. two positively charged atoms. d. two neutrally charged atoms.

Diamond will scratch quartz. true or false

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.