What is the difference between an acid and a base?

An acid when dissolved in a liquid, will produce hydrogen ions (H+) while a base will produce hydroxide ions (OH-). When a litmus paper is used to test acids and bases, acids turn the litmus paper red while bases turn the litmus paper blue. On the pH scale (1-14), acids have pH less than 7 while bases have pH greater than seven.

LS

Related Chemistry A Level answers

All answers ▸

Explain, in the context of catalysis, the term heterogeneous and describe the first stage in the mechanism of this type of catalysis.


Explain how a coordinate bond forms


Why is the Harber process performed at higher temperatures rather than low?


What is an acid and what is the difference between and strong and weak acid