Determine whether each description corresponds to an endothermic reaction or an exothermic reaction. a. The reaction mixture feels cool from the outside.
b. Heat is a product in the reaction.
c. The reaction mixture feels warm from the outside.
d. Heat is a reactant in the reaction. Choose...

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1