Multiple Choice. Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper. (2 points each) 7. The magnitude in the Richter scale of an earthquake that released 1012 joules of energy is 5.06. How much more energy does this earthquake release than that of the reference earthquake? A. 39810720 times C. 39810717 times B. 39810718 times D. 39810719 times 8. Given the formula R = logo what is the magnitude in the Richter scale of an earthquake104.40¹E that released 1016 joules of energy? A. 7.5 B. 7.7 C. 5.7 D. 7.6 9. You test some ammonia and determine the hydrogen ion concentration to he ​