AP Chemistry, 2014-2015 Edition by Richard H. Langley, John Moore

By Richard H. Langley, John Moore

Offers a examine plan to construct wisdom and self assurance, discusses examine abilities and techniques, presents perform assessments, and incorporates a evaluation of the center concepts.


gains five steps for the appropriate ranking of chemistry. This identify is helping you: manage your learn plan with 3 learn schedules; confirm your readiness with an AP-style diagnostic examination; increase the Read more...

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A) (B) (C) (D) K2HPO4 + K3PO4 K2HPO4 + KH2PO4 K3PO4 K2HPO4 66. 0? (A) (B) (C) (D) −4 3 × 10 −10 2 × 10 7 × 10−8 1 × 10−6 Take a Diagnostic Exam ❮ 25 67. Assuming all concentrations are 1 M, which of the following is the most acidic solution (lowest pH)? (A) KBr (potassium bromide) and HBr (hydrobromic acid) (B) H2C2O4 (oxalic acid) and KHC2O4 (potassium hydrogen oxalate) (C) NH3 (ammonia) and NH4NO3 (ammonium nitrate) (D) (CH3)2NH (dimethylamine) and HC2H3O2 (acetic acid) 68. Assuming all concentrations are equal, which of the following solutions has pH nearest 7?

48. A—Calcium is a metal, and answer A applies to metallic bonding. 61. A—Add the equations and cancel anything that appears on both sides of the reaction arrows. 62. B—This is the definition of the activation energy. 52. D—This is a consequence of metallic bonding as the atoms can easily move past each other without breaking any bonds. 63. C—The table shows second order in chlorine dioxide (comparing experiments 1 and 2), because 2 doubling the ClO2 concentration quadruples (2 ) the rate. The reaction is first order in the hydroxide ion (comparing experiments 2 and 3), because − 1 doubling the OH concentration doubles (2 ) the rate.

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