AP Chemistryeasymcq1 pt
In an ICE table for A + B ⇌ C starting with [A]₀ = 1.0 M and no C, what appears in the Change row?
A.−x, −x, +x
B.+x, +x, −x
C.−x, −x, +2x
D.0, 0, +x
Explanation
Core Concept
Reactants decrease by x each (1:1:1 stoichiometry) while product increases by x. The Change row always follows the balanced coefficients.
Correct Answer
A−x, −x, +x
More Unit 7: Equilibrium practice questions
- mediumDoubling the volume of a gaseous equilibrium mixture does what?
- hardWhich of these salts is most soluble?
- easyFor the reaction A(g) + B(g) ⇌ C(g), an equilibrium mixture contains 0.20 M A, 0.10 M B, and 0.40 M C. What is Kc?
- easyHow does the equilibrium constant for a reaction change when a catalyst is added?
- hardA mixture initially contains 2.0 M A. For 2A ⇌ B with K = 0.10, what is [B] at equilibrium (approximately)?
Practice more AP Chemistry questions with full explanations
Practice Unit 7: Equilibrium Questions →