What is the range of the pH scale?

What range are acids?

What range are bases?

1 to 14

1 - 6.9

7.1 - 14

Explanation:

The pH scale is a convenient scale for expressing the level of acidity or bascity of aqueous solutions. The pH is given as the negative logarithm to base 10 of the hydrogen ion  in the solution.

      Acidity increases                              Alkalinity increases

   1                                            7                                                 14

                                       neutral point

a

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.