Question

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✴Question....➡Give three examples of exothermic and endothermic reaction.​

Answer 1

Answer:

Some examples of exothermic processes are:

• Combustion of fuels such as wood, coal and oil petroleum
• Thermite reaction[failed verification]
• Reaction of alkali metals and other highly electropositive metals with water
• Condensation of rain from water vapor
• Mixing water and strong acids or strong bases
• Mixing acids and bases
• Dehydration of carbohydrates by sulfuric acid
• The setting of cement and concrete
• Some polymerisation reactions such as the setting of epoxy resin
• Reaction of most metals with halogens or oxygen
• Nuclear fusion in hydrogen bombs and in stellar cores (to iron)
• Nuclear fission of heavy elements

Some Examples of Endothermic Reaction are:

A good example of an endothermic reaction includes dissolving a salt. It doesn't have to be table salt, nor does the solvent need to be water.

• The reaction of barium hydroxide octahydrate crystals with dry ammonium chloride
• Dissolving ammonium chloride in water
• The reaction of thionyl chloride (SOCl2) with cobalt(II) sulfate heptahydrate
• Mixing water and ammonium nitrate
• Mixing water with potassium chloride
• Reacting ethanoic acid with sodium carbonate
• Photosynthesis (chlorophyll is used to react carbon dioxide plus water plus energy to make glucose and oxygen).

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