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James Rodriguez——Works at Amazon, Lives in Seattle, WA
Burning of wood is a chemical change as new substances which cannot be changed back (e.g. carbon dioxide) are formed. For example, if wood is burned in a fireplace, there is not wood anymore but ash. ... Physical changes are a change in which no new substances are formed, and the substance which is changed is the same.read more >>+119962023-04-23 15:38:08
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