NY Regents Chemistry Exam Jan 2023 Which formula represents chromium(III) oxide? (1) CrO3 (2) Cr3O (3) Cr2O3 (4) Cr3O2 Solution: Chromium...

NY Chemistry Regents Exam Jan 2023 Which general trend is observed as the elements in Period 2 are considered from left to right? (1)...

NY Regents Chemistry Exam Jan 2023 The table below shows the atomic masses and natural abundances of the two naturally occurring isotopes...

NY Regents Chemistry Exam Jan 2023 What is the net charge of a monatomic ion that has 15 protons, 16 neutrons, and 18 electrons? (1) 2+...

NY Regents Chemistry Exam Jan 2023 Which statement describes the net change that occurs during nuclear fission? (1) Electrons are...

NY Chemistry Regents Exam Jan 2023 Which nuclear emission has the greatest mass? (1) positron (2) gamma ray (3) beta particle (4) alpha...

NY Regents Chemistry Exam Jan 2023 When the nucleus of an atom of neon-19 decays, which particle is emitted? Solution: Table N on the...

NY Chemistry Regent Exam Jan 2023 The acidity or alkalinity of a solution can be measured by its (1) pH value (2) electronegativity value...

NY Chemistry Regent Exam Jan 2023 One acid-base theory states that a base is an (1) H- donor (2) H- acceptor (3) H+ donor (4) H+...

NY Chemistry Regents Exam Jan 2023 Which energy conversion occurs in an operating electrolytic cell? (1) chemical energy to electrical...