Science homework #6 - changed During a physical change...

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Steven L. Coburn P. Hatlivik Survey Of the Sciences The element I selected was silver( on the periodic table of elements Ag) . My source was for "silver n. " The Concise Oxford English Dictionary , Twelfth edition. Ed. Catherine Saone’s and Angus Stevenson. Oxford University Press, 2008. Oxford Reference Online . Oxford University Press. ITT Educational Services. 29 July 2010 < I was surprised to learn that in Scottish money silver is actually the chief element. 1. How do we decide if a process is chemical or physical? a. During a chemical change, physical properties are
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Unformatted text preview: changed. During a physical change, chemical properties are not changed 2. What kind of evidence can we look for to show a process is a chemical change? a. Making brownies, because you can add sugar to water and boil the water to get the sugar out, however once the sugar is combined with the other ingredients you get a chemical reaction and the sugar cannot be restored to its original form. 3. Are gases (bubbles) always produced in a chemical reaction? a. No, there are other reaction besides gases, color change, thermal change (hot and cold), taste change (when applicable), corrosion and liquidfication ....
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