Author Question: Fluorine forms an ion with a charge of ________. A) 1- B) 1+ C) 2+ D) 3+ E) ... (Read 84 times)

skymedlock · **on:** Aug 27, 2018

Fluorine forms an ion with a charge of ________.

A) 1-
B) 1+
C) 2+
D) 3+
E) 3-

Question 2

The value of H for the reaction below is -72 kJ. ________ kJ of heat are released when 5.5 mol of HBr is formed in this reaction. H2 (g) + Br2 (g) 2HBr (g)

A) 144
B) 72
C) 0.44
D) 198
E) -72

Question 3

Calculate the pH of a solution prepared by dissolving 0.150 mol of benzoic acid and 0.300 mol of sodium benzoate in water sufficient to yield 1.00 L of solution. The Ka of benzoic acid is 6.30 10-5.

A) 2.516
B) 3.892
C) 4.502
D) 10.158
E) 4.195