Which of the following is made of cells? A. a rock
B. a snowflake
C. a raindrop
D. a leaf

10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?

Which fact represents evidence for the big bang theory?

Which phrase best defines a mountain eee