Chem120 week 3 quiz Study guides, Class notes & Summaries

Week 3 Quiz There are 6 multiple choice and two short answer questions. Each question is worth 5 points. To answer multiple choice questions, highlight the right answer. To answer the short answer questions, show your work and calculations. DO NOT CHANGE THE FORMAT OF THE QUIZ PLEASE. 1. (TCO 5) Which coefficient is placed in front of O2 to complete the balancing of the following equation? C5H8 + ? O2 --> 5 CO2 + 4 H2O 1 3 5 6 7 2. TCO 5) Which should be the coefficient of hydro...

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Chem120 Week 7 Review Quiz Question 1 If an atom loses electrons in a redox reaction, we say this atom was: Oxidized Question 2 In the reaction CrO +H2 H2O + Cr, the element being reduced is: Cr Question 3 What is the oxidizing agent in the reaction Fe3 + V Fe + V3+ Fe3+ Question 4 Which if the following molecules is not a hydrocarbon? Methanol Question 5 Which of the following molecules contains a triple bond? Select all that apply: Pentyne Butyne Question 6 A key application...

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 balanced representation of this process? 2. Question: Determine the molar mass of the molecule Boron Tri fluoride 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 O are in the molecule of the material Al(NO3)3 6. Questi...

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 ...

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:...

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 balanced representation of this process? 2. Question: Determine the molar mass of the molecule BoronTrifluoride 3. Question: Does the image show atoms changingstates? 4. Question: Balance the skeletal equation Li(s) +H2O(f)--LiOH(aq)+H2(g) 5. Question: HowmanyatomsofOareinthemoleculeofthematerial Al(NO3)3 6. Question: For the re...

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 ...