1 During a physical change a large amount of heat energy absorbed or g – InterviewSolution

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1.	1 During a physical change a large amount of heat energy absorbed or given out. 2 On strong heating ammonium chloride decomposes into nitrogen, oxygen and chlorine gas.3 A lot of heat is needed to start the reaction between sodium hydroxide and hydrochloric acid.I I will only the right answer as brilliant
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