Buy New CHEM 120 Unit 3 Quiz (Collection)

Buy New CHEM 120 Unit 3 Quiz Collection

CHEM 120 Unit 3 Quiz (Jan-2021)

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 Trifluoride.
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(NO₃)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 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.
    

    ---

CHEM 120 Unit 3 Quiz (Jan 2021)

1. Question: Magnesium metal can react with hydrochloric acid to produce magnesium chloride and hydrogen gas. Which of the following chemical is the complete and … representation of this process?
2. Question: Determine the molar mass of the molecule Boron Trifluoride
3. Question: Does the image show atoms changing states?
4. Question: Balance the skeletal equation Li(s) +H2O(f)–LiOH(aq)+H2(g)
5. Question: How many atoms of Oarein the molecule of the material Al(NO3)3
6. Question: For the reaction 3Cu(NO3)2 aq +2Na3PO4(aq)-CU3(PO4)2(s)+6NaNO3(aq) ,select ALL of the true statements
7. Question: Aluminum reacts with oxygen according to the following reaction 4Al(s) +302(g)-2Al2O3(s). If the 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?
9. Question: You want to prepare a 1.2 M FeCl3 solution. You only have 6mlof a 3.6 M FeCl3 on hand.How many ml of 1.2M FeCl3 solution can you prepare? Show all work
   

   ---

CHEM 120 Unit 3 Quiz (Dec 2020)

1. Question: A reaction that releases energy as it is classified as an ____ while a reaction that absorbs energy as it occurs is classified as an ____.
2. Question: Which coefficient is placed in front of potassium to balance the following equation? K+H2SO4-K2SO4+H2= ____
3. Question: Which coefficient is placed in front of HCI to balance the following equation? Ca(OH)2 +? HCICaCl2 +H2O = ____
4. Question: Sodium reacts with oxygen to form sodium oxide and has the following chemical equation: 4 Na + O2  How many mole(s) of oxygen gas (O2) are … to react with 8.0 moles of Na?
5. Question: Magnesium reacts with oxygen to form magnesium oxide and has the balanced chemical equation: 2Mg +O2  2 MgO. How many moles of MgO are … when 5 moles of O2 react completely?
6. Question: Determine the number of atoms of the following molecule Na2CO3. Using the periodic table determine the molar mass of this molecule:
7. Question: Determine the number of atoms of the following molecule BaSO4. Using the periodic table determine the molar mass of this molecule:
8. Question: Calculate the concentration of NaCl (in water) solution in several ways and are given the following info: 25g NaCl, 500mL solution. The molecular weight of NaCl= 58.44 calculate mass/volume percent concentration and molarity of the solution
9. Question: What volume (L) of a 1.5 M KOH solution can … prepared by diluting0.2 L of a 5M KOH solution?
10. Question: What is the molecular mass of N2O

Need Assistance with the Quiz?

Exams are a crucial component of a student’s education. No student can climb the achievement ladder without taking an exam. University students today, however, no longer have the leisure to be interested in their studies due to their overwhelming workload from occupations that support the very education they require. Get Exam Done is ideally situated to lend a helping hand in their time of need. This is the place to acquire it for university students who are wondering, “Can I pay a person to take my exam?” For more than two years, we have assisted university students with their pay someone to take my exam concerns and successful outcomes. For custom, help email us at [email protected] or WhatsApp us at +1(657)366-7486