2NaHCO(3) → Na(2)CO(3) + CO(2) + H(2)O ... [ the parenthesis mean its a subscript ] .. Which one is the reactant and which one is the product?
Chemical equations show the reactants and products, as well as other factors such as energy changes, catalysts, and so on. With these equations, an arrow is used to indicate that a chemical reaction has taken place. In general terms, a chemical reaction follows this format:
So NaHCO3 is reactant and Na2CO3 + CO2 + H2O are products.