August 2018 NY Regents Chemistry Exam 17 A cube of iron at 20.°C is placed in contact with a cube of copper at 60.°C. Which statement...

Jan 2019 NY Regents Chemistry Exam 41 Which numerical setup can be used to calculate the heat energy required to completely melt 100....

January 2020 NY Regents Chemistry Exam 13 What is the amount of heat released by 1.00 gram of liquid water at 0°C when it changes to...

June 2017 NY Regents Chemistry Exam 41 Which particle diagram represents one substance in the gas phase? Solution: Gases spread out and...

June 2017 NY Regents Chemistry Exam 21 In which 1.0-gram sample are the particles arranged in a crystal structure? (1) CaCl2(s) (3)...

June 2018 NY Regents Chemistry Exam 40 Which particle diagram represents a mixture? Solution: A mixture consists of two or more...

June 2018 NY Regents Chemistry Exam 39 The table below lists properties of selected elements at room temperature. Based on this table,...

June 2018 NY Regents Chemistry Exam 12 What is represented by the chemical formula PbCl2(s)? (1) a substance (2) a solution (3) a...

June 2018 NY Regents Chemistry Exam 10 Carbon monoxide and carbon dioxide have (1) the same chemical properties and the same physical...

June 2018 NY Regents Chemistry Exam 7 Which statement describes a chemical property of iron? (1) Iron oxidizes. (2) Iron is a solid at...