How can acids and bases each be distinguished from each other?

Using pH indicators. * Acids have pH less than 7 and will turn Methyl Orange from yellow to dark orange for strong acids. Any acid will turn Litmus Blue red. read more

Acids have pH less than 7 and will turn Methyl Orange from yellow to dark orange for strong acids. Any acid will turn Litmus Blue red. Base have pH greater than 7 and will turn Phenolphthalein from colourless to dark pink for strong bases. Any base will turn Litmus Red blue. read more

The main differences between acids and bases can be given by quoting the Brønsted-Lowry acid-base theory. In a neutralization reaction, an acid gives away one of its protons (ie H+ ion) to a base and forms its conjugate base, whereas the base accepts the proton and becomes its conjugate acid. read more