Answer :
Final answer:
To identify the beakers showing evidence of a chemical change from Investigation 1, look for indicators such as color change, gas production, change in temperature, precipitate formation, or light emission. Specific observation details are needed to accurately select the beakers.
Explanation:
To determine which beakers from Investigation 1 show evidence of a chemical change, we would need to look for signs such as a change in color, the production of gas (bubbles), a change in temperature, the formation of a precipitate, or an observable emission of light. Without specific details of what occurred in each beaker during Investigation 1, I can only provide a general guideline on what factors may indicate a chemical change.
For example, Beaker X might show a sudden color change or the formation of a precipitate, indicating a chemical reaction. If Beaker Y generated gas bubbles or a change in temperature, this would also suggest a chemical change. In the case of Beaker Z, an emission of light or a new substance forming could be evidence of a chemical change.
The student should look at their observations of each beaker to see if any of these indications are present to select the correct beakers that show evidence of a chemical change.
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