Which of the following correctly describes isotopes?
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AP Chemistry
Stoichiometry, equilibrium, kinetics, and 7 FRQs.
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Every unit is mapped to the official Course and Exam Description.
U1Atomic Structure
U2Compounds & Bonding
U3Intermolecular Forces
U4Chemical Reactions
U5Kinetics
U6Thermodynamics
U7Equilibrium
U8Acids & Bases
U9Applications of Thermo
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Which type of intermolecular force is responsible for the unusually high boiling point of water compared to similar molecules like H₂S?
How many grams of CO₂ are produced when 36 g of carbon (C) reacts completely with excess O₂? (Molar masses: C=12, O=16, CO₂=44 g/mol)
For the reaction N₂(g) + 3H₂(g) ⇌ 2NH₃(g), what happens when the pressure is increased at constant temperature?
Sample FRQ · AI graded
FRQ prompt
Free Response Question: A student is studying the decomposition of hydrogen peroxide: 2H₂O₂(aq) → 2H₂O(l) + O₂(g) (a) Write the equilibrium expression Kc for this reaction. (b) The student conducts three trials with different initial concentrations of H₂O₂ and measures the initial rate. Data: [H₂O₂] = 0.1 M, rate = 1.0×10⁻³ M/s; [H₂O₂] = 0.2 M, rate = 2.0×10⁻³ M/s; [H₂O₂] = 0.4 M, rate = 4.0×10⁻³ M/s. Determine the order of the reaction with respect to H₂O₂ and write the rat…Practice full FRQs
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