Final answer:
To predict the reactants of the reaction resulting in barium chlorate and water as products, consideration of common decomposition reactions is necessary. A likely reaction involves the decomposition of barium hypochlorite, but without the correct products provided, exact reactants cannot be defined. It may involve an interaction with hydrochloric acid if we are considering the decomposition of barium chlorate.
Step-by-step explanation:
To predict the reactants in the given chemical reaction, we need to consider the products, which are barium chlorate (Ba(ClO)2) and water (H2O). Since barium chlorate is composed of barium (Ba2+), chlorine (Cl-), and oxygen (O2-) ions, and we also have water as a product, a likely reaction is the decomposition of barium hypochlorite and water, given as:
Ba(ClO)2 (aq) + H2O (l) → Ba(ClO)2 (s) + H2O (l)
However, this question looks like there might be a typo in the products, giving a hint that we should correct the products based on the charges of the ions to then deduce the reactants with certainty. Without the correct products, we cannot definitively determine the reactants. If that's the case, we may need to look at the product and consider common decomposition reactions.
If we are to assume the decomposition of barium chlorate, which itself can be produced from the reaction of hydrochloric acid (HCl) with barium chlorate, this can be shown as:
2 HCl (aq) + Ba(ClO)3 (s) → Ba(ClO)2 (s) + 2 H2O (l) + Cl2 (g)
This chemical reaction shows the acid-base interaction between hydrochloric acid and barium chlorate to form barium chlorate as a product, along with water and chlorine gas as byproducts.