Question

∆ hey mate ∆

write 5 examples for exothermic reaction
(chemical equation)

first answering gets brainliest

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Answer 1

When ammonium chloride (NH4Cl) is dissolved in water, an endothermic reaction takes place. The salt dissociates into ammonium (NH4+) and chloride (Cl–) ions. The chemical equation can be written as follows: NH4Cl (s) + H2O (l) ⟶ NH4Cl (aq) – Heat

Ammonium nitrate (NH4NO3), an important component in instant cold packs, dissociates into the ammonium cation (NH4+) and the nitrate anion (NO3–) when dissolved in water. These ions go on to form ammonium hydroxide (NH4OH) and nitric acid (HNO3) respectively (by reacting with the OH– and H+ ions in water). This reaction is endothermic in nature since it cools the surroundings by absorbing heat from it.

The formation of nitric oxide from the reaction between nitrogen and oxygen is endothermic since it involves the absorption of approximately 180.5 kilojoules of heat for every mole of N2 and O2.

Answer 2

Naoh + HCl -------> Nacl + H2O

CuSo4 + Mg ------> MgSo4 + Cu

H2So4 + Mg ------> MgSo4 + H2

2Mg + O2 -------> 2MgO

H2So4 + 2NaOH -----> Na2SO4 + 2H2O