Chem 103 e - Study guides, Class notes & Summaries

Chem 103 Mod 3 Exam (Latest Update) Questions and Answers | 100% CORRECT Elaborations

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. 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 Using the following information, do the conversions shown below, showing all work: 2023 Portage Learning CHEM 103 Exam 1-6 Final LATEST Exam 1-6 1 ft = 12 inche...

CHEM 103 Exam 1-6 Final Exam (2024/2025) Portage learning already graded A+ Questions and Answers (Verified Answers)

CHEM 103 Module 3 Exam Portage Learning 2023. NH4Cl is being dissolved in water and this process is being studied in a styrofoam coffee cup with a lid and the heat absorbed is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry term to describe the item listed. 1. The type of thermochemical process 2. The air above the cup Your Answer: 1) endothermic 2) Surroundings 1. Heat absorbed = Endothermic process 2. The air above the cup = Surro...

CHEM 103 MODULE 3 EXAM WITH ANSWERS Click this link to access the Periodic Table. This may be helpful throughout the exam. A reaction between HCl and NaOH is being studied in a styrofoam coffee cup with a lid and the heat given off is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry term to describe the item listed. 1. The type of thermochemical process 2. The calorimeter and mixture of HCl + NaOH Your Answer: 1. The typ...

A piece of shiny metal was found pm the edge of the road. The metal was put on a balance and had a mass of 1.325g. The volume was determined by difference when the metal was placed into a 20.00 ml column of oil, which was displaced to 34.97ml. correct answersa) volume=14.97ml b) 0.08851 possible metal density: aluminum, zinc, lead, uranium correct answersunknown light chocolate melts at 88.2 degrees f. What would this temperature be if reported on both the Celsius scale and the Kelvin sca...

Chem 103 Exam 1 review - UW Madison Questions and Answers Rated A+ ### Questions and Answers **What defines an acid in a solution?** A solution that has an excess of H+ ions --- **What characterizes a base in a solution?** A solution that has an excess of hydroxyl ions (OH-) --- **What occurs during neutralization?** The process where an acid and a base are mixed until they neutralize each other, resulting in a pH of 7. --- **What are the two primary products ...

A uniform combination of two or more pure substances can be classified as _____. Correct Answer-a homogeneous mixture Which of these pure substances is an element? - C12H22O11 (sucrose, table sugar) - O2 - CH4 (methane, the primary component of natural gas) - NH3 (ammonia, a component of fertilizer) Correct Answer-O2 Based on the organization of the periodic table, periods _____. Correct Answer-are the horizontal rows To which group and period does potassium belong? Correct Answer...

Chem 103 Exam 2 Study Guide With Complete Solutions **What is thermodynamics?** Thermodynamics is the field of study concerned with energy and its transformations. **Define thermochemistry.** Thermochemistry examines the relationships between chemical reactions and the heat involved. **Explain kinetic energy.** Kinetic energy is the energy of motion, expressed by the formula E = 1/2mv^2. **Define potential energy.** Potential energy is the energy possessed by an object du...

What is an acid? - Answer-solution has an excess of H+ ions What is a base? - Answer-solution has an excess of hydroxyl ions (OH-) What is neutralization? - Answer--process where acid and base are mixed until they become neutral and the PH is 7. What are the two products of a neutralization chemical reaction? - Answer-water and salt ( The type of salt depends on acid or base added to neutralize.) What is a weak acid? - Answer-an acid that only partially ionizes in an aqueous solution. This...