Straighterline chem 101 - Study guides, Class notes & Summaries

STRAIGHTERLINE CHEM 101 GENERAL CHEMISTRY GRADED EXAM 1 - APRIL 2022

STRAIGHTERLINE CHEM 101 GENERAL CHEMISTRY GRADED LATEST SOLUTION QUESTION AND ANSWERS.2023 What is ΔS° for the following reaction? SiCl4(g) + 2Mg(s) → 2MgCl2(s) + Si(s) Substance SiCl4(g) Mg(s) MgCl2(s) Si(s) S°(J/K • 330.73 32.68 mol) 89.62 18.83 Select one: a. –254.96 J/K • mol b. –198.02 J/K • mol c. +198.02 J/K • mol d. +254.96 J/K • mol e. +471.86 J/K • mol Question 2 Correct 4.60 points out of 4.60 Flag question a. causes the surro...

Straighterline chem 101 exam 1 with questions and answers.Question 1 Correct 4.60 points out of 4.60 Flag question Question text What is the term used for findings that are summarized based on a pattern or trend? Select one: a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction Feedback The correct answer is: Law Question 2 Correct 4.60 points out of 4.60 Flag question Question text What is a unifying principle that explains a body of experimental observations? Select one...

Straighterline chem 101 exam 2 with questions and answers.The distinguishing characteristic of all nonelectrolyte solutions is that they Select one: a. contain ions. b. do not conduct electricity. c. react with other solutions. d. always contain acids. e. conducts heat. Feedback The correct answer is: do not conduct electricity. Question 2 Correct 4.60 points out of 4.60 Flag question Question text If aqueous solutions of Mg(C2H3O2)2 and LiOH are mixed, which insoluble precipitate ...

Straighterline chem 101 Graded Exam 3 with questions and answers.An aluminum ion, Al , has Select one: a. 13 protons and 13 electrons. b. 27 protons and 24 electrons. c. 16 protons and 13 electrons. d. 13 protons and 10 electrons. e. 10 protons and 13 electrons. The correct answer is: 13 protons and 10 electrons. Which of these atoms has the greatest electron anity? Select one: a. S b. P c. Ga d. Li e. Cl The correct answer is: Cl

STRAIGHTERLINE CHEM 101 GENERAL CHEMISTRY GRADED EXAM

A solution of chloroform, CHCl3, and acetone, (CH3)2CO, exhibits a negative deviation from Raoult's law. This result implies that Select one: a. chloroform-chloroform interactions are stronger than chloroform-acetone interactions. b. chloroform-chloroform interactions are weaker than chloroform-acetone interactions. c. acetone-acetone interactions are stronger than chloroform-acetone interactions. d. acetone-acetone interactions are weaker than chloroform-acetone interactions. e. Choice ...

Course Content General Introduction and Getting Started Topic 1: Introduction to Chemistry Topic 2: Matter and Its Components Topic 3: Stoichiometry Topic 4: Reactions in Aqueous Solutions Topic 5: Thermochemistry Topic 6: Quantum Theory Topic 7: The Main Group Elements Topic 8: Properties of Liquids and Solids Topic 9: Properties of Gases Topic 10: Intermolecular Forces and Phase Changes Topic 11: Modern Materials Topic 12: Colligative Properties of Solutions Topic 13: Acids an...

Question text Ozone (O3) in the atmosphere can react with nitric oxide (NO) as follows. O3(g) + NO(g) → NO2(g) + O2(g). ΔH°rxn = –199 kJ/mol, ΔS°rxn = –4.1 J/K • mol What is ΔG°rxn for this reaction at 25°C? Select one: a. 1020 kJ/mol b.–1.22 × 103 kJ/mol c. 2.00 × 103 kJ/mol d. –1.42 × 103 kJ/mol e. –198 kJ/mol Cu(s) + H+(aq) + NO3–(aq) → NO(g) + H2O(l) + Cu2+(aq) Select one: a. 1, 2, 1, 1, 1, 1 b.3, 2, 1, 1, 1, 3 ...