January 2020 NY Regents Chemistry Exam 17 Systems in nature tend to undergo changes toward (1) lower energy and less randomness (2)...

January 2020 NY Regents Chemistry Exam 16 Entropy is a measure of (1) accuracy (2) precision (3) the disorder of a system (4) the...

January 2020 NY Regents Chemistry Exam 15 Which statement describes a reaction at equilibrium? (1) The mass of the products must equal...

January 2020 NY Regents Chemistry Exam 8 Which statement describes the energy and bonding changes as two atoms of fluorine become a...

June 2023 NY Regents Chemistry Exam 50 Given the nuclear equation and isotopic masses: What is the amount of mass converted to energy as...

June 2023 NY Regents Chemistry Exam 49 Given the equation representing a reaction: Which type of reaction is represented by the equation?...

June 2023 NY Regents Chemistry Exam 48 What fraction of an original sample of 131I remains unchanged after 24.063 days? (1) 1/8 (2) 1/2...

June 2023 NY Regents Chemistry Exam 47 Which aqueous solution has the greatest ability to conduct an electric current? (1) 0.10 M...

June 2023 NY Regents Chemistry Exam 46 The diagram and equation below represent an electrochemical cell. Which process is represented by...

June 2023 NY Regents Chemistry Exam 45 Given the formula representing a compound: What is a chemical name of this compound? (1)...