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Author Question: Which of the following does not represent a chemical change? (Read 108 times)

byomi

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on: Nov 5, 2023

Question 1

Which one of the following represents a chemical change?

◦ boiling water to form steam
◦ burning a piece of coal
◦ heating lead until it melts
◦ mixing iron filings and sand at room temperature
◦ breaking glass

Question 2

Which of the following does not represent a chemical change?

◦ a freshly cut apple turns brown
◦ milk turns sour on standing at room temperature
◦ when cooled to 0°C, liquid water becomes ice
◦ frying an egg
◦ fermentation of sugar to alcohol
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by byomi on Nov 5, 2023

Sha

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Reply #1 on: Nov 5, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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byomi

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Reply 2 on: Nov 5, 2023
YES! Correct, THANKS for helping me on my review

Joy Chen

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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