adding heat to an exothermic reaction will products and the

adding heat to an exothermic reaction will products and the concentrations of the concentrations of reactants

Solution

Adding heat will shift the reaction in a direction which absorbs heat as per Le chatelier Principle
Forward reaction is exothermic in nature
hence, backward reaction will be favoured
So, Equilibrium moves to reactant side

So, concentration of reactant will increase and product will decrease

Answer:
decrease, increase