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  • Stage 1

    Answer 4 questions correctly in a row.

The diagram below shows a solution with one solute. Each solute particle is represented by a pink ball. The solution fills a closed container that is divided in half by a membrane. The membrane, represented by a dotted line, is permeable to the solute particles.
The diagram shows how the solution can change over time during the process of diffusion.
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Complete the text to describe the diagram.
Solute particles moved in both directions across the permeable membrane. But 
more
 solute particles moved across the membrane 
from the left to the right

. When there was an equal concentration on both sides, the particles reached equilibrium.
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