Question

question 7 (1 point) when the drug heroin comes into contact with the marquis reagent what happens? a it burns up b it glows in the dark c it turns purple d it foams

Explanation:

The Marquis reagent is a common chemical reagent used in drug - testing. When it comes in contact with heroin, it turns purple. Burning, glowing, or foaming are not the correct reactions.

Answer:

C. It turns purple