Creating models of substances like sulfuric acid helps us visualize their structure and how the atoms are arranged, making it easier to understand their properties and reactions. Models can simplify complex ideas and show how different parts of a molecule interact.
The image is a model of sulfuric acid that has a chemical formula of H2SO4. In 1-2 sentences, explain why creating models, like the one shown in the image above, is important in understanding substances. as in eighth grader very very short
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Use the chemical equation to complete the activity. 2Cu+S→Cu2S Copper (Cu) reacts with sulfur (S) 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 scientist expected the products of the reaction will be a total of 15.9 grams of copper sulfide (Cu2S). 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. (2 points) every question I ask please say as an 8th grader and do it very very short
The scientist used the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. So, the total mass of the reactants (12.7g of Cu + 3.2g of S) must equal the mass of the products, which is why they expected 15.9 grams of Cu2S.
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