Welcome to Westonci.ca, your ultimate destination for finding answers to a wide range of questions from experts. Join our Q&A platform to connect with experts dedicated to providing precise answers to your questions in different areas. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

When Tabitha was testing a substance she thought might be heroin, she added the Marquis reagent chemical to the substance. It turned purple, so she was able to verify it was heroin. What does this BEST demonstrate?

A.
demonstrative evidence

B.
individual characteristics

C.
physical properties

D.
chemical properties