Question

example of of each exothermic and endothermic

Answer 1

Exothermic processes



1) making ice cubes



2) formation of snow in clouds



3) condensation of rain from water vapor



4) a candle flame



5) rusting iron



Endothermic processes



1) melting ice cubes



2) conversion of frost to water vaporr



3) evaporation of water



4) forming a cation from an atom in the gas phase



5) cooking an egg



redox reaction



CuS + HNO3 -> Cu SO4 + NO (g) + H2O



3CuS + 8HNO3 -> 3 CuSO4 + 8NO(g) + 4H2O



3CuS2+ + 3S2- + 8H+ + 8NO3- -> 3Cu2+ + 3SO42- + 8NO(g) + 4H2O