complete and balance the following molecular equations and then write net ionic equations for each reaction.
BaCl2(aq) + K2SO4(aq)
KNO3(aq) + HCl(aq)
I got the answers to both of these already but i posted one other one that I could not get
I have answered the one with which you had trouble.
To complete and balance the molecular equation for the reaction BaCl2(aq) + K2SO4(aq), we need to determine the products formed when these compounds react with each other.
The first step is to determine the formulas of the products. In this case, the cations (Ba2+ and K+) will exchange anions (Cl- and SO42-) to form the products.
Ba2+ combines with SO42- to form BaSO4, while K+ combines with Cl- to form KCl.
Therefore, the molecular equation is:
BaCl2(aq) + K2SO4(aq) → BaSO4(s) + 2KCl(aq)
To balance the equation, we ensure that the number of atoms of each element is the same on both sides. In this case, the equation is already balanced.
To write the net ionic equation, we need to remove the spectator ions. These are ions that are present on both the reactant and product sides and do not participate in the overall reaction. The spectator ions for this reaction are K+ and Cl-.
Therefore, the net ionic equation is:
Ba2+(aq) + SO42-(aq) → BaSO4(s)
Next, let's complete and balance the molecular equation for the reaction KNO3(aq) + HCl(aq).
When these compounds react, the cations (K+ and H+) will exchange anions (NO3- and Cl-) to form the products.
K+ combines with Cl- to form KCl, while H+ combines with NO3- to form HNO3.
The molecular equation is:
KNO3(aq) + HCl(aq) → KCl(aq) + HNO3(aq)
To balance the equation, we ensure that the number of atoms of each element is the same on both sides. In this case, the equation is already balanced.
To write the net ionic equation, we remove the spectator ions, which are K+ and Cl-.
Therefore, the net ionic equation is:
NO3-(aq) + H+(aq) → HNO3(aq)
In the net ionic equation, only the ions that actually participate in the chemical reaction are shown.