Use the chemical equation to complete the activity. N2+3H2− 2NH3 Nitrogen gas ( N2 ) reacts with hydrogen gas ( H2 ) to form ammonia ( NH3 ), a well-known cleaning product present in many households. A scientist adds 6.7 grams of nitrogen gas to 19.3 grams of hydrogen gas to start the reaction. In this reaction, all of the nitrogen and hydrogen react. Before running the experiment, the scientist expected the products of the reaction to be a total of 26 grams of ammonia. In 1-2 sentences, explain the law that the scientist used to predict that the product of the reaction would be 26 grams of ammonia. (2 points)

Question

Use the chemical equation to complete the activity. N2+3H2−> 2NH3 Nitrogen gas ( N2 ) reacts with hydrogen gas ( H2 ) to form ammonia ( NH3 ), a well-known cleaning product present in many households. A scientist adds 6.7 grams of nitrogen gas to 19.3 grams of hydrogen gas to start the reaction. In this reaction, all of the nitrogen and hydrogen react. Before running the experiment, the scientist expected the products of the reaction to be a total of 26 grams of ammonia. In 1-2 sentences, explain the law that the scientist used to predict that the product of the reaction would be 26 grams of ammonia. (2 points)

GPT-4o mini · Answer

The scientist used the Law of Conservation of Mass, which states that in a closed system, the mass of reactants must equal the mass of products. Since 6.7 grams of nitrogen gas and 19.3 grams of hydrogen gas total 26 grams, the scientist predicted that the reaction would yield 26 grams of ammonia.