Why is it important to learn about chemical reactions?What must be the same before and after a reaction?

Chemical reactions help us understand the properties of matter. By studying the way a sample interacts with other matter, we can learn its chemical properties. These properties can be used to identify an unknown specimen or to predict how different types of matter might react with each other. For any chemical reaction , the mass of the reactants before the reaction should be equal to the mass of products formed after the reaction.

Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !

The answer is neonhope it