1. Question: Zinc metal will react with aqueous hydrochloric acid to produce aqueous zinc chloride and
hydrogen gas. Which of the following is the complete, balanced equation for this reaction?
2. Question: Determine the molar mass of the molecule Boron Tri fluoride.
3. Question: In the figure shown, is a chemical reaction occurring?
4. Question: Balance the following skeletal equation: Li(s) + H2O(l) → LiOH(aq) + H2(g).
5. Question: How many atoms of O are in one molecule of the material Al(NO 3)3
For the reaction:
6. Question: 3Cu(NO3)2(aq) + 2Na3PO4(aq) → Cu3(PO4)2(s) + 6NaNO3(aq)
Select all the following true statements. There may be multiple correct choices.
7. Question: Aluminum reacts with oxygen according to the following reaction: 4Al(s) + 3O2(g) →
2Al2O3(s) If 12 moles of aluminum react
completely with oxygen, how many moles of Al2O3 should form?
8. Question: What is the % concentration of a solution consisting of 60 grams of solute dissolved in
solution with a total volume of 500 ml?
9. Question: A solution is prepared by dissolving 8.5 grams of HBr in water to a total volume of 750 mL.
What is the molarity (M) of this solution? The
molar mass of HBr is 80.91 g/mol. Show all work.
10. Question: You want to prepare a 1.2 M FeCl3 solution. You only have 6 mL of a
3.6 M FeCl3 on hand. How many mL of 1.2M FeCl3 solution can you prepare? Show all work.
hydrogen gas. Which of the following is the complete, balanced equation for this reaction?
2. Question: Determine the molar mass of the molecule Boron Tri fluoride.
3. Question: In the figure shown, is a chemical reaction occurring?
4. Question: Balance the following skeletal equation: Li(s) + H2O(l) → LiOH(aq) + H2(g).
5. Question: How many atoms of O are in one molecule of the material Al(NO 3)3
For the reaction:
6. Question: 3Cu(NO3)2(aq) + 2Na3PO4(aq) → Cu3(PO4)2(s) + 6NaNO3(aq)
Select all the following true statements. There may be multiple correct choices.
7. Question: Aluminum reacts with oxygen according to the following reaction: 4Al(s) + 3O2(g) →
2Al2O3(s) If 12 moles of aluminum react
completely with oxygen, how many moles of Al2O3 should form?
8. Question: What is the % concentration of a solution consisting of 60 grams of solute dissolved in
solution with a total volume of 500 ml?
9. Question: A solution is prepared by dissolving 8.5 grams of HBr in water to a total volume of 750 mL.
What is the molarity (M) of this solution? The
molar mass of HBr is 80.91 g/mol. Show all work.
10. Question: You want to prepare a 1.2 M FeCl3 solution. You only have 6 mL of a
3.6 M FeCl3 on hand. How many mL of 1.2M FeCl3 solution can you prepare? Show all work.
