13. (03.02 LC) Which layer is between the crust and the asthenosphere? (7 points)
O LIthosphere
O Mesosphere
O Outer core
O Inner core

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer