SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which is the following is NOT a sign of a chemical change?
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Releasing a gas
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Releasing bubbles
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Changing state
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Rearranging atoms
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Explanation:
Detailed explanation-1: -Boiling of water is not a chemical change it is a physical change.
Detailed explanation-2: -Color. The changing of color of a substance is not necessarily an indicator of a chemical change.
Detailed explanation-3: -Melting of ice is not an example of chemical change as the chemical composition of water remains the same even after melting.
Detailed explanation-4: -Color Change. Production of an odor. Change of Temperature. Evolution of a gas (formation of bubbles) Precipitate (formation of a solid) 02-Apr-2021
Detailed explanation-5: -Formation of a precipitate. Production of a gas. Change in colour. Energy change. Production of odor. 09-Dec-2015
There is 1 question to complete.