When water is stored in a copper vessel for 6 to 8 hours or overnight, some small amounts of copper dissolve in the water. This process is known as the oligodynamic effect. In recent years, people ...

The rich organic matter that gives the largest tributary of the Amazon River, the Rio Negro, its characteristic black hue may provide fish with some protection from the negative effects of copper ...

Students will be able to plan and carry out an investigation to compare the solubility of different substances, and develop and explain a particle-level model to describe the process of dissolving.