How do you indicate the following effects in a chemical equation?
A) A solution made in water
B) Exothermic reaction
C) Endothermic reaction
A) we will put (aq) sign after the element to which water is added .
B) we will show that energy is released as a product of the reaction.
C) we will show that energy is consumed by putting the name of form of energy (eg heat , sunlight ,etc.) on the arrow between the reactants and the products