Chem 1311 - Study guides, Class notes & Summaries

In which set of elements would all members be expected to have very similar chemical properties? -P, Se, I -Br, I, At -Ne, Na, Mg -Cl, Br, Na -Si, As, Te correct answer: Br, I, At Of the following elements, which have been shown to form compounds? helium neon argon krypton xenon -xenon, krypton, and argon -xenon only -xenon and krypton -xenon and argon -None of the above can form compounds correct answer: xenon, krypton, and argon Which of the following correctly re...

Chapter 10: Chemical Bonding II: Molecular Geometry and Hybridization of Atomic Orbitals 1. Give the number of lone pairs around the central atom and the molecular geometry of CBr4. A) 0 lone pairs, square planar D) 1 lone pair, trigonal bipyramidal B) 0 lone pairs, tetahedral E) 2 lone pairs, square planar C) 1 lone pair, square pyramidal Ans: B Category: Medium Section: 10.1 2. Give the number of lone pairs around the central atom and the molecular geometry of SCl2. A) 0 lone pairs, ...

What is Planck's constant represented as? correct answer: h What is the value of Planck's constant? correct answer: 6.63 x 10^-34 Js How is the principal quantum number symbolized? correct answer: n How is angular momentum quantum number symbolized? correct answer: l How is magnetic quantum number symbolized? correct answer: m or mℓ How is spin quantum number symbolized? correct answer: s or ms In quantum mechanics, how many quantum numbers are needed to describe elec...

CHEM 1311 Test 1 Questions With Complete Solutions

1. Which of the following is an example of a quantitative observation? A) The piece of metal is longer than the piece of wood. B) Solution 1 is much darker than solution 2. C) The liquid in beaker A is blue. D) The temperature of the liquid is 60°C. E) At least two of the above (A-D) are quantitative observations. ____ 2. Which element does not exist naturally on earth? A) Bismuth B) Uranium C) Lanthanum D) Technium E) Protacinium ____ 3. 8.1 milligram(s) contains this many grams. ...

CHEM 1311 4a Exam Questions with Correct Answers What is the hybridization of the nitrogen atom NH3? a. sp b. sp2 c. sp3 d. sp3d e. sp3d2 - Answer-c. sp3 The valence shell is a. the highest energy level occupied by electrons b. the set of orbitals used to make triple bonds c. the orbitals belonging to the entire molecule d. the lowest energy level occupied by electrons e. the hard covering on crustaceans - Answer-a. the highest energy level occupied by electrons What is t...

CHEM 1311 - Chapter 1 Detailed Questions and Expert Answers

Chem 1311 Final Exam Questions With Complete Solutions

CHEM 1311 Detailed Questions and Expert Answers