QuestionAugust 8, 2025

How did the experiement with boiling water compare with the experiment in which magnesium was added to hydrochloric acid? D Both resulted in gas formation. Both resulted in temperature change. Both involved chemical change. Both involved physical change. One involved chemical change while the other involved physical change.

How did the experiement with boiling water compare with the experiment in which magnesium was added to hydrochloric acid? D Both resulted in gas formation. Both resulted in temperature change. Both involved chemical change. Both involved physical change. One involved chemical change while the other involved physical change.
How did the experiement with boiling water compare with the experiment in which magnesium was added to hydrochloric acid? D Both resulted in gas formation. Both resulted in temperature change. Both involved chemical change. Both involved physical change. One involved chemical change while the other involved physical change.

Solution
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Answer

One involved chemical change while the other involved physical change. Explanation 1. Identify the Nature of Each Experiment Boiling water is a physical change as it involves a change in state from liquid to gas without altering the chemical composition. Adding magnesium to hydrochloric acid is a chemical change, producing hydrogen gas and magnesium chloride. 2. Analyze Outcomes Boiling water results in a temperature change and gas formation (steam), but it's a physical change. The reaction between magnesium and hydrochloric acid results in gas formation (hydrogen) and a temperature change due to exothermic reaction, indicating a chemical change.

Explanation

1. Identify the Nature of Each Experiment<br /> Boiling water is a physical change as it involves a change in state from liquid to gas without altering the chemical composition. Adding magnesium to hydrochloric acid is a chemical change, producing hydrogen gas and magnesium chloride.<br /><br />2. Analyze Outcomes<br /> Boiling water results in a temperature change and gas formation (steam), but it's a physical change. The reaction between magnesium and hydrochloric acid results in gas formation (hydrogen) and a temperature change due to exothermic reaction, indicating a chemical change.
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