Sophia University milestone1 chem_ What is the product of the chemical reaction

What is the product of the chemical reaction in a hydrogen fuel cell?  oxygen  hydrogen  hydrogen peroxide  water CONCEPT Chemical Reactions in the Real World Report an issue with this question 2 To answer this question, you may need access to the periodic table of elements, a calculator, and the equations and charts in the tutorial associated with this question. Which of these is a common radioactive tracer used in medicine?  carbon-14  radon-222  technetium-99  uranium-236 CONCEPT Applications of Nuclear Chemistry Report an issue with this question 3 To answer this question, you may need access to the periodic table of elements, a calculator, and the equations and charts in the tutorial associated with this question. is known as ________.  226-radium