Question:
What is chemical change ?
Give reason. and Why?
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4
Answer:
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
Answered by
1
Answer:
change in the composition or properties of a substance can be called as chemical change . we can determine that chemical change has been occur by seeing
change in colour
release of gas
change in temperature
most common example can be rusting of iron .
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