KClO3 - - - > KCl + O2 Balance the decomposition chemical reaction. A) KClO3 - - - > KCl + O2 B) 2KClO3 - - - > KCl + 3O2 C) 2KClO3 - - - > 2KCl + 3O2 D) 2KClO3 - - - > 2KCl + 6O2

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A 0.250 M solution of HCN has a pH = 4.87. a) Determine the [H3O+] in the solution. b) Calculate the percent ionization of HCN in this solution.

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A nitric acid solution flows at a constant rate of 5L/min into a large tank that initially held 200L of a 0.5% nitric acid solution. The solution inside the tank is kept well stirred and flows out of the tank at a rate of 10L/min.

How many molecules are in 237g (about a cup of water)