Four factors which indicate whether chemical reactuon has taken place

1.	Four factors which indicate whether chemical reactuon has taken place
Answer» LOWING can indicate that a chemical change has taken place, ALTHOUGH this evidence is not conclusive: Change of odor. Change of color (for example, silver to reddish-brown when iron rusts). Change intemperature or ENERGY, such as the PRODUCTION (EXOTHERMIC) or loss (endothermic) of heat.HOPE IT HELPS:-BE BRAINLY

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