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A volume of hydrogen gas at 1.00 atm increases from 0.250 L to 0.500 L.  If the temperature remains constant, what is the final pressure?

Which of the following metal reacts with nitric acid?                     (activity series for metals: Li > Mg > Zn > Fe > Sn > (H) > Cu > Ag > Hg > Au)       

Which of the following is not an observed property of gases?

  Which of the following statements is not true according to the kinetic theory of gases:

Given a 10 percent interest rate, compute the present value of the following cash flows: Cash flow $0 $5,000 $4,0000 $3,000 $2,000 Time 0 1 2 3 4 Round your answer to the nearest dollar.

Calculate the electronegativity difference in a hydrogen fluoride bond:

The DuPont analysis is often used to provide a quick look at company performance before undergoing a more extensive analysis.  Based upon the DuPont Analysis provided below, discuss the relative performance of two companies, Target and Walmart.  Most recent annual data from morningstar.com.  Note: A full discussion is not indicating which is higher in each category.   Company  Profit Margin Total Asset  Turnover Equity Multiplier Return on Equity Target 4.67% 1.99 3.54 32.90% Walmart 2.42% 2.28 3.12 17.21%

Using VSEPR theory, predict the molecular shape for a silane molecule, SiH4.

ADVANCED CONCEPTS What is the most important assessment to perform before giving the first dose of any drug to treat insomnia?

Draw the electron dot formula for the carbonate ion, CO32- (C is the central atom).  How many pairs of nonbonding electrons are in a carbonate ion?