1. What are the reactions between the following oxides and water? Are the solutions acidic, basic or neutral. Click on any formula to check answer.

calcium oxide,CaO(s)-

aluminum oxide, Al2O3(s)

sodium oxide, Na2O(s)

magnesium oxide, MgO(s)-

2. The formulas for a series of oxides are listed below. Which ones play a role in producing acid rain? Click on any formula to see its role.

carbon dioxide, CO2(g)

sulfur trioxide,SO3(g)

3. What is the total balanced equation for the reaction between hydrobromic acid, a strong acid, and calcium hydroxide, a strong base? Click to see answer

4. Label the following products as acidic or basic and approximate pH range. Click to see answer  a. Vinegar  b. Baking soda c. Beer  d. Lye e. Soft drinks  f. Milk of Magnesia

5. Why is baking soda, NaHCO3, used to neutralize skin burns from acids? Click to see solution & answer.

6. When 125.0 mL of 0.25 M HCl is mixed with 75.0 mL of 0.34 M NaOH, what is the nature of the mixture? What is the balanced equation for the reaction between the two solutions? Is the solution neutral, acidic or basic? How many mols of HCl were added? How many moles of NaOH were added? Which is in excess? Click to see solution

7.How many mL of 0.20 M HBr is needed to neutralize 23.45 mL of 0.11 M KOH? What is the balanced equation for the reaction between the two solutions? Click to see answer.

8.A lab technician wants to determine the molarity of an unknown acid. What is the molariity of the solution if 13.61 mL of the acid is neutralized by 34.69 mL of 0.025 M KOH? Click to see answer