7. State whether each of the following represents a chemical change or merely a physical change: (a) A few grams of sucrose (table sugar) are placed in a small beaker of deionized water; the sugar crystals “disappear,” and the liquid in the beaker remains clear and colorless. (b) A copper statue, over time, turns green. (c) When a teaspoon of baking soda (sodium bicarbonate) is placed into a few ounces of vinegar (acetic acid), volumes of bubbles (effervescence) are produced.
7. State whether each of the following represents a chemical change or merely a physical change: (a) A few grams of sucrose (table sugar) are placed in a small beaker of deionized water; the sugar crystals “disappear,” and the liquid in the beaker remains clear and colorless. (b) A copper statue, over time, turns green. (c) When a teaspoon of baking soda (sodium bicarbonate) is placed into a few ounces of vinegar (acetic acid), volumes of bubbles (effervescence) are produced.
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter1: Chemistry And Measurement
Section: Chapter Questions
Problem 1.48QP: Decide whether each of the following is a physical property or a chemical property of the substance....
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7. State whether each of the following represents a chemical change or merely a physical change:
(a) A few grams of sucrose (table sugar) are placed in a small beaker of deionized water; the sugar
crystals “disappear,” and the liquid in the beaker remains clear and colorless.
(b) A copper statue, over time, turns green.
(c) When a teaspoon of baking soda (sodium bicarbonate) is placed into a few ounces of vinegar
(acetic acid), volumes of bubbles (effervescence) are produced.
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