Question

Indicator paper can be used to measure the _________________ of a solution. indicators are substances that are different ___________________ depending on the ph of the solution tested. another way to measure the acidity of the solution is the _________________ , which uses electrodes placed in solution to directly read the results.

Answer 1

sorry, but im just learning some chemistry myself so i only know that the 1st blank is: Ph

hope you can find what the other 2 blanks are