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What type of chemical reaction is illustrated in the following equation?                      Al (s)    +     O2 (g)                   >     Al2O3 (s)          

Suppose you are interested in an investment that will pay you $5,000 in 6 years. Similar investments are offering a return of 8% per year (opportunity cost). a.  What would you be willing to pay for the investment?  Show your work. b.  Would you buy the investment if the market price is $3,500?  

The modern periodic law states that the properties of the elements repeat when the periodic table is arranged according to which of the following? 

COMPARE (state what is similar) and CONTRAST (state what is different) for antiseptics and disinfectants. Include 2 examples of each for full credit (5 pt):

If you invest $5,000 today in an investment that will earn 10% per year, how much will your investment be worth in 25 years (rounded to the nearest dollar)?   Enter your answer without any negative sign and rounded to the nearest dollar.

Consider three halogen elements, at 20 ̊C: given that the density of 17Cl (in period 3) is 1.56 g/mL and that of 53I (in period 5) is 4.97 g/mL, predict the density of 35Br (in period 4).  

You are looking to buy a car. You can afford $300 in monthly payments for five years. In addition to the loan, you can make a $5,000 down payment. If interest rates are 4 percent APR, what price of car can you afford? Round your answer to the nearest dollar.  

A student adds 0.1 mol of oxalic acid and 0.1 mol of sodium dihydrogen phosphate to enough water to make 1.0 L of solution. The following equilibrium is established with the concentrations of the products greater than the concentrations of the reactants. Which of the statements about the equilibrium system is correct? H2C2O4(aq) + H2PO4(aq)  HC2O4(aq) + H3PO4(aq)  

A parent might attempt to resolve a transfer of ownership by giving children active in the firm’s management _____ stock and giving nonactive children _____ stock.

Joey owes $5,000 on a credit card.  The credit card charges 14% per year (compounded monthly).  If Joey pays $100 per month on the credit card, how long will it take him to pay off the credit card?   Provide the answer from your calculator or excel rounded to two decimal places (do not round to a whole number).