INTRODUCTION
RESEARCH AND SCIENTIFIC METHODS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Identify the observation below that shows an object is being burnt and that it is going through a chemical change.
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The object changes shape
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The object melts
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The object changes color and turns into something new
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The object begins to bubble
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Explanation:
Detailed explanation-1: -Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light.
Detailed explanation-2: -A chemical change occurs whenever matter changes into an entirely different substance with different chemical properties. Burning is an example of a chemical change.
Detailed explanation-3: -Color Change. Production of an odor. Change of Temperature. Evolution of a gas (formation of bubbles) Precipitate (formation of a solid) 02-Apr-2021
There is 1 question to complete.