30 points plss ! - match the term and defintion 1. acid a) used to measure the ph of substances by determining their hydrogen ion concentration 2. base b) a compound that increases hydroxide ions (oh−) when it is dissolved in a solution 3. ph c) a value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water 4. litmus paper d) a compound that increases hydrogen ions (h+) when it is dissolved in a solution