Practice 40 questions on AAXCH1A - Foundation Chemistry 1 at Vaal University of Technology. Free AI-generated quiz on uNotes — track your score, retake anytime.
Which term describes the reactant that is used up first in a chemical reaction and determines the amount of product that can be formed?
2If a laboratory experiment produces 45 grams of a substance but the stoichiometric calculation predicted a theoretical yield of 50 grams, what is the percentage yield?
3According to the module content, which of the following factors can influence the rate of a chemical reaction?
4An exothermic reaction is in a state of chemical equilibrium. According to Le Châtelier’s Principle, if the temperature of this system is increased, what will happen?
5How does the Brønsted-Lowry theory define a base?
6In the context of electrochemistry, which of the following statements regarding electrodes are correct?
7What is the pH of a solution with a hydronium ion concentration [H3O+] of 1 x 10^-9 mol/L?
8Which of the following describes the relationship for Molarity (M) according to the glossary?
9When writing the equilibrium constant expression (Kc) for a heterogeneous equilibrium, which physical states are typically omitted because their concentrations remain constant?
10In a balanced redox reaction, which of the following must be true?
