Corundum is the mineral responsible for sapphires and .

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Adilute aqueous potassium nitrate solution is

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.