Use the following to answer the questions below:
In each of the following multiple-choice questions, characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
-Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) The square brackets associated with a general equilibrium constant expression mean that concentrations must be expressed in terms of molarity.
(2) Pressure changes affect all chemical systems at equilibrium in which gaseous reactants or products are present.
(3) In the compound KMnO₄, the oxidation number of Mn is +3.

Question

Quizplus · Accepted Answer

1) True: The square brackets in equilibrium constant expressions indeed signify that concentrations are expressed in molarity (mol/L). 2) False: Pressure changes primarily affect systems with gaseous reactants or products according to Le Chatelier's principle, but the effect depends on the change in the number of moles of gas during the reaction. 3) False: In KMnO4, the oxidation number of Mn is +7, not +3. The compound given seems to be incorrectly notated, but assuming it meant to refer to a compound containing Mn, the stated oxidation state is incorrect based on common oxidation states of Mn.

Use the Following to Answer the Questions Below