which of the following is a chemical change?
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The following can indicate that a chemical change has taken place: Change of odor. Change of color (for example, silver to reddish-brown when iron rusts). Change in temperature or energy, such as the production (exothermic) or loss (endothermic) of heat.
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Hey.... can u pls give the options?
Anyways, a chemical change is a change where the chemical properties change. It cannot be reversed.
Example:- Once you bake a cake, you cannot take out the flour, eggs or any ingredients seperately
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