Chem 104 Exam 6 Actual Test Paper Questions Correct Answers Graded A Plus

CHEM 104 EXAM 6 ACTUAL TEST PAPER QUESTIONS CORRECT ANSWERS GRADED A
PLUS
CHEM 104 Exam 6 Questions and Answers Verified
Solutions Latest Update 2026/2027

Question:
Define chemical equilibrium

Answer:
Forward and reverse reactions occur at equal rates and concentrations of products and reactants
remain constant (not necessarily equal)



Question:
What are the 4 important principles of equilibrium?

Answer:
1) All reactions eventually reach equilibrium 2) All species are present at equilibrium 3)
Equilibrium is dynamic (though no observable changes) 4) Le Chatelier's principle - but will never
return exactly to initial equilibrium concentration



Question:
Define LeChatelier's principle

Answer:
When a chemical system at equilibrium is disturbed, it returns to equilibrium by counteracting
disturbance



Question:
How do gases affect position of equilibrium?

Answer:
Change in pressure of gas in the system will cause a shift Addition of gas not in system has no effect

, Question:
How does temperature affect equilibrium?

Answer:
Temp = stress Heat considered a reactant in endothermic reactions and a product in exothermic
reactions



Question:
How do catalysts affect equilibrium?

Answer:
They have no effect



Question:
How does the addition of a solvent (ex. water) affect equilibrium?

Answer:
Causes a decrease in concentration of all aqueous solutions - shifts to side with greatest amount of
aqueous solutions



Question:
What is the equilibrium constant (Keq/Kc/Kp)?

Answer:
- Products over reactants, raised to power of respective coefficients in balanced chemical equation
Has no units Solids and pure liquids not included Always positive, but can be large or small



Question:
What is the magnitude of Kc?

Answer:
Measures yield of reaction at equilibrium