GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What are some signs of chemical changes?
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A chnage in matter that produces one or more new substances
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Oxidation, tarnishing, etc
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..
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:)
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Explanation:
Detailed explanation-1: -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-2: -Bubbles of gas appear. Gas-producing reactions run to completion when the gas can leave the reaction mixture. A precipitate forms. A color change occurs. The temperature changes. Light is emitted. A change in volume occurs. A change in electrical conductivity occurs. A change in melting point or boiling point occurs. More items
Detailed explanation-3: -Expected color change. Change in size or shape. Change in state of matter. Reversible. No new substance formed! 11-Mar-2014
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