June 2017 NY Regents Chemistry Exam 20 Distillation of crude oil from various parts of the world yields different percentages of...

June 2017 NY Regents Chemistry Exam 18 A sample of a gas is in a sealed, rigid container that maintains a constant volume. Which changes...

June 2017 NY Regents Chemistry Exam 16 The joule is a unit of (1) concentration (2) energy (3) pressure (4) volume Solution: The joule is...

June 2017 NY Regents Chemistry Exam 15 The average kinetic energy of water molecules decreases when (1) H2O(l) at 337 K changes to H2O(l)...

Elements, Compounds, Mixtures and Their Properties Elements can not be broken down by a chemical change. Symbols of elements can be found...

June 2017 NY Regents Chemistry Exam 14 Which form of energy is associated with the random motion of particles in a gas? (1) chemical (2)...

June 2017 NY Regents Chemistry Exam 13 Compared to a potassium atom, a potassium ion has (1) a smaller radius (2) a larger radius (3)...

June 2017 NY Regents Chemistry Exam 11 What is the number of electrons shared between the atoms in an I2 molecule? (1) 7 (2) 2 (3) 8 (4)...

June 2017 NY Regents Chemistry Exam 10 At STP, two 5.0-gram solid samples of different ionic compounds have the same density. These solid...

June 2017 NY Regents Chemistry Exam 9 In which type of reaction can two compounds exchange ions to form two different compounds? (1)...