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 only information needed to write an equilibrium constant expression is a balanced chemical equation with physical state information for the reaction of concern.
(2) The oxidation number of sulfur is the same in the species H₂SO₄ and SO₄^2-.
(3) Increasing the concentration of a reactant makes collisions between the reactant and other reactants less likely because of "more crowded conditions."

Question

Quizplus · Accepted Answer

(1) is mostly true, but it is incomplete as it requires knowledge of the law of mass action to fully write an equilibrium constant expression. So, (1) is partially true.
(2) is true as both species have a sulfur with an oxidation state of +6.
(3) is false. Increasing the concentration of a reactant increases the chance of collisions and therefore increases the reaction rate. So, (3) is false. 
Therefore, two of the three statements are true, making the correct answer (B).

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