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Interpret the following medical histories into layman’s terms.  Incomplete interpretations will not receive credit.  All answers must be as those specified in the mod and/or textbook. OP with previous hx of COPD.  No chest complaints.

What was the name of the supercontinent that formed approximately 1.1 billion years ago?  (billion, not million)

What is the mass in grams of 0.382 moles of caffeine, C8H10O2N4? 

Using the balanced chemical equation: 2Al + O3 —> Al2O3 What mass of Al2O3 can be produced from the reaction of 10.0 g of Al and 19.0 g of O3? 

Calculate the volume of 50.0 g of sodium chloride with a density 2.16 g/cm3.  (1 cm3 = 1 mL)

How many grams of magnesium oxide will result when 10.0 g of solid magnesium is burned in air? 2 Mg (s) + O2 (g)  –>  2 MgO (s)

What is the empirical formula of the compound with the following compositions:  2.1 percent H, 32.6 percent S, 65.3 percent O?

Calculate the molarity of 7.82 g of naphthalene (C10H8) in 85.2 mL of benzene solution.

Write the ground-state electron configuration for boron.

An electron in a certain atom is in the n = 4  quantum level. Write in the l value(s) that it can have.