SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What chemical reaction means?
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The process by which one or more substances are rearranged to form different substances
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Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The process by which the atoms of one or more substances are rearranged to form different substances is called a chemical reaction.
Detailed explanation-2: -During a chemical reaction no atoms are created or destroyed. The atoms are rearranged. This results in the formation of new substances with different properties to the starting substances.
Detailed explanation-3: -A chemical reaction occurs when two or more substances are combined to form a new substance and cannot be separated back into its original substances.
Detailed explanation-4: -Combination reactions occur when two or more substances combine to form a new substance.
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