Endothermic (5 reactions).
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Answer:
An endothermic process is any process with an increase in the enthalpy H of the system
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Explanation:
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 to carbon dioxide plus water plus energy to make glucose and oxygen).
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