Compound A (Black)

Compound B ( White)

Compound A and B evaporate in equal quantities whenever they make contact.

Reagent: Each ml added evaporated, while doubling any compound it touches. Wait for first reaction before adding more.

By themselves white and black do nothing, but when combined they cancel each other out. If you add 3ml of white and 5ml of black you would have 2ml of black.

Orange multiplies by 2. If you add 1ml of orange to 3ml of white you would double the white and end up with 6ml.

The quantity added of each colour is determined by door 8

The letters are A (1ml), B (2ml), C (3ml), D (4ml), E (5ml).

Answer

The experiment creates ACID (spelled out)