A chemist adds a chemical to pure water and there is a 100 fold increase in the concentration of hydrogen ions. What is the best approximation of the new pH value?
A. 0
B. 5
C. 7
D. 9
E. 14
B. 5
Biology & Microbiology
You might also like to view...
Another name for crossing over is:
A. realignment. B. reassortment. C. recombination. D. reallocation.
Biology & Microbiology
Calcium is necessary to initiate muscle contraction. Which of the following molecules binds calcium?
A. myosin B. actin C. troponin D. tropomyosin
Biology & Microbiology
A human X-linked gene is ____
a. found only in males b. more frequently expressed in females c. found on the Y chromosome d. transmitted from father to son e. found on the X chromosome
Biology & Microbiology
Plant cell walls are cellulose fibrils in a matrix of
a. chitin and pectin. b. pectin and hemicellulose. c. Pectin and lignin. d. lignin and chitin.
Biology & Microbiology