Download 500 AP Chemistry Questions to Know by Test Day by Mina Lebitz PDF

By Mina Lebitz

Organized for simple reference and the most important perform, insurance of all of the crucial subject matters awarded as 500 AP-style questions with exact resolution explanations

5 Steps to a five: 500 AP Chemistry inquiries to recognize by way of attempt Day is adapted to fulfill your learn needs—whether you could have left it to the final minute to arrange otherwise you were learning for months. you'll take advantage of going over the questions written to parallel the subject, layout, and measure of trouble of the questions inside the AP examination, followed by way of solutions with finished explanations.

Features:

  • 500 AP-style questions and solutions referenced to center AP materials
  • Review reasons for correct and flawed answers
  • Additional on-line practice
  • Close simulations of the true AP exams
  • Updated fabric displays the most recent tests
  • Online perform exercises

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E) It first melts at approximately 80°C and then quickly sublimes. 101. Which of the following pure substances has the highest melting point? 5 kg of water, starting as a solid. It is heated at a constant rate of 1 atm of pressure in an open container. Assume no mass is lost during the experiment. 102. The sample of water requires the greatest input of energy during: (A) The heating of ice from –50°C to 0°C (B) The melting of ice at 0°C (C) The heating of water from 0°C to 100°C (D) The vaporization of water 100°C (E) The heating of steam from 100°C to 120°C 103.

Which of the following best explains this observation? (A) K2CO3 is more soluble than KBr. (B) K2CO3 has more atoms than KBr. (C) K2CO3 contains the carbonate ion, a polyatomic ion. (D) KBr has a higher molar mass than K2CO3. (E) KBr dissociates into fewer ions than K2CO3. 157. 66 (E) 1 158. A solution contains 144 g H2O and 92 g of ethanol (CH3CH2OH, molar mass 46 g mol−1). The mole fraction of ethanol is closest to: (A) 20 percent (B) 25 percent (C) 40 percent (D) 64 percent (E) 80 percent 159.

When the equation is balanced and all coefficients reduced to their lowest whole-number terms, the coefficient for H+ is: (A) 6 (B) 12 (C) 14 (D) 16 (E) 28 212. The reaction represented above occurs in a basic solution. When the equation is balanced and all coefficients reduced to their lowest whole-number terms, the coefficient for OH− is: (A) 0 (B) 1 (C) 2 (D) 4 (E) 5 Questions 213–216 refer to the following balanced chemical reaction: 213. 80 214. 30 moles of gas are formed by the reaction indicated above, how many moles of O2(g) are needed to react?

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