Question

what are chemical reactions ? give 3 examples​

Answer 1

chemical reaction is a process that lea

ds to the transformation of one set of chemical substances to another.

E.g:-Photosynthesis

Aerobic Cellular Respiration

Combustion

Answer 2

the formation of new substance with new properties is called a chemical reaction

zinc+oxygen gives zinc oxide

hydrogen+oxygen gives water(hydroxide)

sodium+calcium gives sodium chloride

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