Final Exam 101A Final Exam tips posted on website Thursday, May 9th 1:30-4:30 pm 50 multiple choice No free response 300 points Cumulative Exam locations posted on website Bring calculator, extra pencils, ID Office Hours Office Hours before the final: Today in Chemistry Library Conference room after lecture Tomorrow 1:30-3 pm (2026 Chem Annex) Tuesday May 7, 1-3 pm (2026 Chem Annex) Wednesday May 8, 1-3 pm (2026 Chem Annex) Final Exam tips posted on website Final grades posted by Monday May 13

Final Exam Study Tips Review old exams, practice exams, and reviews questions/additional questions in lab book!!! Study lecture notes. Go over practice problems from lon-capa and the text. If you get stuck on a question, go back and read about the topic in your text.

Clicker #1 You have three balloons with the same volume. One has He gas, one has H2 only, and one has a mixture of H2 and O2. Which has the greatest pressure and number of moles of gas particles? Pressure Number of moles a) All equal He b) H2 + O2 greatest c) H2 + O2 d) H2 only e)

Clicker #2 Which of the following shows the correctly balanced equation for this reaction: H2O2 → H2O + O2 A) 3 H2O2 → 3 H2O + O2 B) H2O2 → 2 H2O + O2 C) 2 H2O2 → 2 H2O + O2 D) H2O2 → H2O + O2

Clicker #3 You have two balloons of the same size. One contains helium and one contains xenon. How do the numbers of particles and densities compare? He Xe Number of Particles Density a) He = Xe b) He > Xe He < Xe c) d)

Clicker #4 Is a racquetball frozen by liquid nitrogen an endothermic or exothermic process? (The system is underlined.) A) endothermic B) exothermic

Clicker #5 Which produces the greatest amount of product? 2H2 + O2  2H2O A) 2 mol H2, 1 mol O2 B) 2 mol H2, 2 mol O2 C) 4 mol H2, 1 mol O2 D) 2 mol H2, 3 mol O2 E) All the same

Clicker #6 What is the sum of coefficients when the thermite reaction is balanced? Fe2O3 + Al  Al2O3 + Fe A) 2 B) 4 C) 5 D) 6 E) 7

Clicker #7 Is the thermite reaction an endothermic or exothermic process? A) endothermic B) exothermic