Chem 12 - Study guides, Class notes & Summaries

CHEM 121 Module 1 Exam Questions and Answers - Portage Learning. Complete the two problems below: 1. Convert 1005.3 to exponential form and explain your answer. 2. Convert 4.87 x 10-6 to ordinary form and explain your answer. 1. Convert 1005.3 = larger than 1 = positive exponent, move decimal 3 places = 1.0053 x 103 2. Convert 4.87 x 10-6 =negative exponent =smaller than 1, move decimal 6 places = 0. Question 2 You may find the following resources helpful: Scientific Calculator (Links t...

CHEM 120 Final Exam 1. (TCO 8) 35.0 mL of 0.25 M NaOH is neutralized by 23.6 mL of an HCl solution. The molarity of the HCl solution is (show your work): (Points : 5) 2. (TCO 1) How many mL are in 3.5 pints? Show your work. (Points : 5) 3. (TCO 3) What is the name of the following compound: Zn3P2? (Points : 5)

Latest 2023 - 2024 CHEM 120 Week 1 to Week 7 Quizzes |TEST BANK| Questions and Answers Included | A+ Rated Guide | New Full Exam Actual GRADEXAM

CHEM 120 Exam 2 2023: Chapters 5,6,7,8 (With Answer Key) 100% CORRECT (PASS GUARANTEE) - Chamberlain College of Nursing PART 1: Multiple Choice questions: Q 1-24. (2 point each) 1. Chemical reactions (equations) show the following a. Reactants b. Products c. Physical state of each (gas or liquid or solid) d. All of the above 2. The following is true for a mole a. It is also known as Avagadro’s number b. It contains 6.022 * 1023 molecules c. It contains mass equivalent to molecular...

CHEM 121 Module 4 Exam Questions and Answers- Portage 2024/2025/CHEM 121 Module 4 Exam Questions and Answers- Portage 2024/2025

CHEM 121 FINAL EXAM | Updated Questions and Answers Updated (2024 / 2025) - PORTAGE LEARNING Do the three conversions shown below, showing all work: 1. 328 K = ? oC 2. 76oC = ? oF 3. 135oF = ? K Your Answer: 1 - 328 - 273 = 55 C 2 - (76x 1.8) + 32 = 168.8 F 3 - (135 - 32) / 1.8 = 57.2 C + 273 = 330.2 K 1. 328K - 273 = 55 oC K → oC (make smaller) -273 2. 76oC x 1.8 + 32 = 168.8 oF oC → oF (make larger) x 1.8 + 32 3. 135oF - 32 ÷ 1.8 = 57.2 + 273 = 330.2 K oF → oC →K Question ...

CHEM 121 Lab Report 6 Equilibrium Reactions - Portage Learning

1. Convert 1005.3 to exponential form and explain your answer. 2. Convert 4.87 x 10-6 to ordinary form and explain your answer. Your Answer: 1.) Convert 1005.3 to exponential form and explain your answer: All number values must be between 1-10. Because this value is greater than 1, the exponent remains positive. In order for this to happen, we have to move the decimal three places to the LEFT thus, the exponential form of 1005.3 is: 1.0053 X 103