Kelly Brooks
11/15/2024 · Junior High School
1. Qu'observe-t-on au fond du tube à essai après chauffage ? 2. Qu'arrive-t-il à l'extrémité incandescente de la baguette ? Qu'est- ce que cela signifie?
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1. After heating, changes like melting, decomposition, or condensation can be observed at the bottom of the test tube, depending on the substance inside.
2. At the glowing end of the rod, a bright color or glow indicates high temperature, suggesting the rod is releasing heat for chemical reactions or observing changes in substances.
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