Which of the following pairs would have the greatest coulombic attraction in a solid compound? 1. mg2+, s2- 2. mg2+, se2- 3.mg2+, o2-

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

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