January 2018 NY Regents Chemistry Exam 29 An unstable nucleus spontaneously releases a positron. This is an example of (1) radioactive...

January 2018 NY Regents Chemistry Exam 28 In which type of reaction can an atom of one element be converted to an atom of another...

August 2018 NY Regents Chemistry Exam 50 Given the equation representing a reaction: Which type of reaction is represented by this...

August 2018 NY Regents Chemistry Exam 30 Dating once-living organisms is an example of a beneficial use of (1) redox reactions (2)...

August 2018 NY Regents Chemistry Exam 29 The energy released by a nuclear fusion reaction is produced when (1) energy is converted to...

August 2018 NY Regents Chemistry Exam 28 Which nuclear emission is listed with its notation? (1) gamma radiation, γ (2) proton, He (3)...

August 2018 NY Regents Chemistry Exam 27 What evidence indicates that the nuclei of strontium-90 atoms are unstable? (1) Strontium-90...

January 2019 NY Regents Chemistry Exam 50 Which nuclear emission has the least penetrating power and the greatest ionizing ability? (1)...

January 2019 NY Regents Chemistry Exam 49 Given the equation: Which type of nuclear reaction is represented by the equation? (1) fission...

January 2019 NY Regents Chemistry Exam 30 Which phrase describes a risk of using the radioisotope Co-60 in treating cancer? (1)...