Two atoms have the same relative atomic mass but different chemical properties. Which row about the proton and neutron numbers of these atoms is correct?

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

Chromosome 17 is made of over million base pairs.