Chem 120 week 3 quiz - Study guides, Class notes & Summaries

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...

CHEM 120 Week 3 Quiz: Introduction to General Organic and Biological Chemistry with Lab-MCMILLIN

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...

CHEM 120 WEEK 3 QUIZ Chamberlain College

CHEM 120 WEEK 3 QUIZ GRADED A LATEST UPDATECHEM 120 WEEK 3 QUIZ GRADED A LATEST UPDATECHEM 120 WEEK 3 QUIZ GRADED A LATEST UPDATECHEM 120 WEEK 3 QUIZ GRADED A LATEST UPDATECHEM 120 WEEK 3 QUIZ GRADED A LATEST UPDATE

CHEM 120 All Quiz Solutions Week 1 – 7 1. Question : (TCO 2) The atomic number of an atom is equal to the number of Student Answer: electrons plus protons. nuclei. neutrons plus protons. protons. neutrons. Instructor Chapter 3; The atomic number = number of protons Explanation: 6 MultipleChoice 2 True 0 6 MultipleChoice 2 2. Question : (TCO 2) Consider a neutral atom with 30 protons and 34 neutrons. The atomic number of the element is Student Answer: 94. 30. 64. 32. 34. Ins...

CHEM 120 Week 1 Quiz 1. Question : (TCO 1) You have been growing the same variety of corn for over 5 years. In the past two years, you have noticed that the yield has decreased by 10% each year. You grow corn on 10 acres of land and your yield should be 1,000 bushels per acre. Growing conditions have been consistent for the past 5 years. You want to identify another variety of corn that will produce 1,000 bushels per acre. You currently grow Variety ZQB. You want to test two new varieti...

CHEM 120 Week 1 Quiz 1. Question : (TCO 1) You have been growing the same variety of corn for over 5 years. In the past two years, you have noticed that the yield has decreased by 10% each year. You grow corn on 10 acres of land and your yield should be 1,000 bushels per acre. Growing conditions have been consistent for the past 5 years. You want to identify another variety of corn that will produce 1,000 bushels per acre. You currently grow Variety ZQB. You want to test two new varieti...