Use the incomplete reaction to complete the activity.

Ba(ClO3)2 → ____ + 3O2

In one or two sentences, identify the type of reaction that is occurring and identify the other product. Based on the subscripts of the elements in the other product and the fact that chlorine has seven valence electrons, determine the number of electrons in barium’s (Ba) outer shell.

The reaction is a decomposition reaction, and the other product is BaO. Barium has two electrons in its outer shell.