August 2019 NY Regents Chemistry Exam 35 Which equation represents a conservation of atoms? (1) 2Fe+2O2 →Fe2O3 (2) 2Fe + 3O2 → Fe2O3 (3)...

January 2020 NY Regents Chemistry Exam 38 Which equation represents conservation of charge? Solution: Conservation of charge means that...

June 2017 NY Regents Chemistry Exam 48 Fission and fusion reactions both release energy. However, only fusion reactions (1) require...

June 2017 NY Regents Chemistry Exam 47 Given the equation representing a nuclear reaction: The particle represented by X is Solution: To...

June 2017 NY Regents Chemistry Exam 46 What is the mass of an original 5.60-gram sample of iron-53 that remains unchanged after 25.53...

June 2018 NY Regents Chemistry Exam 30 The use of uranium-238 to determine the age of a geological formation is a beneficial use of (1)...

June 2018 NY Regents Chemistry Exam 29 The energy released during a nuclear reaction is a result of (1) breaking chemical bonds (2)...

June 2018 NY Regents Chemistry Exam 28 Which particle has the least mass? (1) alpha particle (2) beta particle (3) neutron (4) proton...

June 2018 NY Regents Chemistry Exam 27 The stability of an isotope is related to its ratio of (1) neutrons to positrons (2) neutrons to...

January 2018 NY Regents Chemistry Exam 30 Which phrase describes a risk associated with producing energy in a nuclear power plant? (1) ...