Chem 101 Study guides, Class notes & Summaries

Intermolecular forces (IMFs) correct answer: the forces of attraction between molecules of covalent compounds (weak) Intramolecular forces correct answer: forces within molecules. Forces caused by the attraction and repulsion of charged particles (strong) Dispersion forces correct answer: present in all molecules attractions between molecules caused by the electron motion on one molecule affecting the electron motion on the other through electrical forces; these are the weakest inter...

Chem 101 Final Exam Questions And Answers 100% Solved Determine the formula weight of KBr - answer119.00 amu Determine the mass in grams of 3.00 x 10^21 atoms of arsenic. (The mass of one mole of arsenic is 74.92 g.) - answer0.373 g Fill in the blank: A mole is defined as the number of carbon atoms in _____ g of pure ^12C. - answer12 How many atoms are in 1.2 mol of carbon? - answer7.2264 x 10^23 Which one of the following contains the most moles of oxygen atoms? A) 1 mol of Fe(C2H3O2)3...

CHEM 101 - Exam #1 Study Guide (Ch. 1-3) Questions and answers latest update

STRAIGHTERLINE CHEM 101 GENERAL CHEMISTRY GRADED EXAM 1 - APRIL 2022

CHEM 101 Final Ivy Tech Exam| 155 Questions With Verified Answers What is the definition of a scientific theory? Correct Answer: a model that explains the underlying reasons for observations and laws What term best describes a brief statement that summarizes many past observations and predicts new ones? Correct Answer: scientific law Which of the following is an example of a scientific law? Correct Answer: In a chemical reaction, matter is neither created nor destroyed. Which of the ...

QUESTIONS AND ANSWERS

Chem 101 Final Exam Questions And Answers 100% Solved Determine the formula weight of KBr - answer119.00 amu Determine the mass in grams of 3.00 x 10^21 atoms of arsenic. (The mass of one mole of arsenic is 74.92 g.) - answer0.373 g Fill in the blank: A mole is defined as the number of carbon atoms in _____ g of pure ^12C. - answer12 How many atoms are in 1.2 mol of carbon? - answer7.2264 x 10^23 Which one of the following contains the most moles of oxygen atoms? A) 1 mol of Fe(C2H3O2)3...

CHEM 101-STRAIGHTERLINE EXAM 1

Question 1 Which of the following setups would convert centimeters to feet? A) cm × × B) cm × × C) cm × × D) cm × × Question 2 The distance between carbon atoms in ethylene is 134 picometers. Which of the following expresses that distance in meters? A. 1.34 × 10–13 m B. 1.34 × 10–12 m C. 1.34 × 10–10 m D. 1.34 × 10–7 m 3 | P a g e Question 3 A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concent...

Which of these compounds is a weak electrolyte? Select one: a. HCl b. NH3 c. C6H12O6 (glucose) d. N2 e. KCl Question 2 Correct 4.60 points out of 4.60 Remove flag Question text What volume of water must be added to 300 mL of 0.75 M HCl to dilute the solution to 0.25 M? Select one: a. 900 mL b. 600 mL c. 300 mL d. 930 mL e. 100 mL Question 3 Correct 4.60 points out of 4.60 Flag question Question text The substance HClO4 is considered to be Select one: a. a weak acid. b...