June 2023 NY Regents Chemistry Exam 13 Which process can be used to separate a mixture of two liquids having different boiling points?...

June 2023 NY Regents Chemistry Exam 12 Which statement describes what occurs when two iodine atoms react to produce an iodine molecule?...

June 2023 NY Regents Chemistry Exam 9 At STP, which property can be used to differentiate a 10.-gram sample of NaCl(s) from a 10.-gram...

June 2023 NY Regents Chemistry Exam 8 Based on Table I, which equation represents conservation of mass and energy? Solution: First let's...

June 2023 NY Regents Chemistry Exam 4 When a ground state electron in an atom moves to an excited state, the electron (1) absorbs...

June 2017 NY Regents Chemistry Exam 44 Which compound is classified as an ether? (1) CH3CHO (2) CH3OCH3 (3) CH3COCH3 (4) CH3COOCH3...

June 2017 NY Regents Chemistry Exam 27 Ethanoic acid and 1-butanol can react to produce water and a compound classified as an (1)...

June 2017 NY Regents Chemistry Exam 26 Which compound is an isomer of C2H5OC2H5? 1) CH3COOH (2) C2H5COOCH3 (3) C3H7COCH3 (4) C4H9OH...

June 2017 NY Regents Chemistry Exam 25 What is the name of the compound with the formula CH3CH2CH2NH2? (1) 1-propanol (2) 1-propanamine...

June 2018 NY Regents Chemistry Exam 45 Which equation represents an addition reaction? (1) C3H8 + Cl2→ C3H7Cl +HCl (2) C3H6 + Cl2 →...