What do lemons, tomatoes, and coffee all have in common chemically?

1 Answer
Jun 14, 2016

You can let your imagination run riot here.



They are all composed of chemicals.

They are all the fruits of green plants that rely on photosynthesis.

Their major constituent is water.

They are all acidic. (I am told, that the presence of acids in coffee is responsible for both the pleasant taste, and the bitter taste.)