Login or Sign Up
Menu
Ask a New Question

Use the chemical equation to complete the activity.

2Cu + S -- Cu2S
Copper reacts with sulfur to form copper sulfide as shown in the equation. A scientist adds 12.7 grams of Cu to 3.2 grams of S to start the reaction. In this reaction, all of the copper and all of the sulfur react. Before running the experiment, the scientists expected the products of the reaction will be a total of 15.9 grams of copper sulfide in 1-2 sentences, explain the law that the scientist used to predict that the product of the reaction would be 15.9 grams of copper sulfide

The scientist used the law of conservation of mass to predict that the product of the reaction would be 15.9 grams of copper sulfide. This law states that matter cannot be created or destroyed in a chemical reaction, meaning that the combined mass of the reactants should be equal to the combined mass of the products.

The scientist used the Law of Conservation of Mass to predict that the product of the reaction would be 15.9 grams of copper sulfide. This law states that mass cannot be created or destroyed in a chemical reaction, so the total mass of the reactants must equal the total mass of the products.

The scientist used the law of conservation of mass to predict that the product of the reaction would be 15.9 grams of copper sulfide. According to this law, mass cannot be created or destroyed in a chemical reaction, so the total mass of the reactants must equal the total mass of the products. By summing the masses of the copper and sulfur used in the reaction (12.7 grams + 3.2 grams = 15.9 grams), the scientist concluded that the resulting copper sulfide would have a mass equal to the total mass of the reactants.