Question

Please not just give me each question's answer. But also the process or why you chose this option. Thank you so much!

D. 3 C-11. 2C-o, 4 H-o, and i 0-0 bonds are broken, while l CEO and 2 11-0 are formed. 13. Isotopes have esc I. different atomic number III. the same atomic number II. the same mass number IV. different mass number In the first experiment, the measured absorbance is 0.001. However, in the second experiment the measured absorbance is 0.0005. In both experiments the optical path length is the same. Based on the results, you may conclude that the concentration of UV absorbing molecules in the second sample is 14. Two aqueous samples of UV light absorbing solution are examined using a UV spectrometer lo A. twice of that in the first sample. B. half of that in the first sample. C. approximately the same. D. four times of that in the first sample. 15. Th e phosphorus (P) atom has valence electrons andcore electrons . A. 5, 15 B. 5, 10 C. 13,2 D. 10, 5 16. Albert Einstein proposed that electromagnetic radiation is constituted of individual bundles of energy (particles of light) called A. neutrons B. baryons C. hadrons D. photons 17. Infrared radiation most likely to A. excite molecular vibrations C. excite molecular rotations B. ionize molecules D. break chemical bonds 18. C type ultraviolet radiation from the Sun is mostly absorbed by " 〔 the oxygep and the ozone in the atmosphere. B.the oxygen in the atmosphere. D. the nitrogen in the atmosphere the ozone in the atmosphere. 19. Which is an element? A. carbon atv monotd .nitrogen gas B. nitrogen gas D. table salt