Final Questions

Question 1

What is Professor Morgan’s favorite color?

Answer 1

C. Purple

Question 2

Ch. 6) What is the energy of a photon (in eV) that has a wavelength of 420 nm?

Answer 2

C. 2.95 eV

Question 3

(Ch.3) How much SiO2 (in kg) is required to produce 3.00 kg of SiC?

Answer 3

C. 4.50 kg SiO2

Question 4

(Ch. 9) For a molecule whose central atom is sp2- hybridized, how many electron domains will be around the central atom?

Answer 4

C. 3

Question 5

(Ch. 11) Which of these compounds has the strongest intermolecular forces?

Answer 5

A. H2O

Question 6

(Ch. 13) What is the molality (m) of a 48.3% (by mass) aqueous solution of hydrocyanic acid, HCN?

Answer 6

C. 34.6

Question 7

(Ch. 8) True or False. The Lewis structure for CO2, shown below, is correct.

Answer 7

A. True

Question 8

(Ch. 3) When the equation 𝐹𝑒 (𝑠) + 𝐶𝑙2 (𝑔) → 𝐹𝑒𝐶𝑙3 (𝑠) is balanced, what is the coefficient
for Cl2?

Answer 8

C. 3

Question 9

(Ch. 2) In a single, neutral atom of arsenic-75, there are ____ neutrons, ____ protons, and ____ electrons.

Answer 9

B. 42, 33, and 33

Question 10

(Ch. 9) What is the molecular geometry (MG) being represented by this model?

Answer 10

C. trigonal bipyramidal