BI-396
Diffusion
Biology · Secondary 3 · Medium · Diffusion
A cube of agar jelly containing a pH indicator is placed in dilute hydrochloric acid. Which change would most clearly show that diffusion has occurred?
- The whole cube gradually changes colour
- The cube increases in mass but keeps the same colour
- Only the surface of the cube melts away
- Bubbles of gas form on the surface of the cube
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.