Physical and Chemical Changes — Science STD 7 — Question
Gujarat BoardEnglish MediumSTD 7SciencePhysical and Chemical Changes1 Mark
Question
Explosion of a cracker is a chemical change Explain.
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Answer
When we burn a cracker, it explode Explosion produces heat, light, sound and unpleasant gases that pollute the atmosphere. Many new products are formed. So, it is a chemical change.
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