haneyl said:Ba(NO3)2 > NaBr
A molecular equation is a chemical equation that shows the complete chemical formulas of all reactants and products, as if they exist as molecules in the reaction. It does not account for any ionic charges or states of matter.
A net ionic equation is a simplified version of a molecular equation that shows only the species that are directly involved in the chemical reaction. This means that any spectator ions, which do not participate in the reaction, are excluded from the net ionic equation.
Writing net ionic equations helps to focus on the actual chemical reaction taking place and eliminates any extraneous information. It also allows for a clearer understanding of the reactants and products involved in the reaction.
Spectator ions are those that appear on both the reactant and product side of the equation, but do not undergo any chemical changes. They can be identified by looking for ions that do not change oxidation state or form a precipitate or gas.
A molecular equation for the reaction between sodium chloride and silver nitrate would be: NaCl + AgNO3 → AgCl + NaNO3. The net ionic equation for this reaction would be: Na+ + Cl- + Ag+ + NO3- → AgCl + Na+ + NO3- (simplified to remove spectator ions).