If Bromine belongs to the group halogens in group 7a, what do you know about the valence electrons and how reactive bromine is with other elements?

At stp, what is the volume of 1 mole of co2?

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.