Answer:
4grams of product
Step-by-step explanation:
All chemical reactions are actually chemical changes. In chemical reactions, the laws of conservation of mass and matter must be obey and complied with. These laws are fundamental to all reactions and they dictate the amount of matter that can be produced from the set of reactants.
The law of conservation of mass holds that mass is conserved and that matter is neither created nor destroyed in an isolated system. It simply suggests that the same amount of products and reactants constitutes an actual reaction.
If we start a reaction with 4grams of product, we are expected to produce 4grams of the products alsol.