(vi) The change in which new substance is formed are called
(a) Physical changes
(b) chemical changes
(c) Fast changes
(d) Slow changes
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Answer:
chemical changes
Explanation:
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A change in which one or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction. Chemical changes are very important in our lives. All new substances are formed as a result of chemical changes.
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