Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

It looks like it's disappeared but it's still there. It's just mixed with the water to make a transparent liquid called a solution. A substance that is able to dissolve in water is known as a soluble.

Health officials are warning that the practice of chroming – inhaling solvents or other household chemicals – can have irreversible impacts on vital organs, including the brain. The warning comes ...

Students will be able to make measurements showing that whether the process is a change of state, dissolving, or a chemical reaction, the total mass of the substances does not change. Note: In the ...

Ten years ago, E. Freund and Gisa Kaminer of Vienna published results of investigations on cancer which attracted attention throughout the scientific world. They had found that the serum of the blood ...

Reversing means to go back. Reversible changes are where a change to something can be undone again. The change is only temporary and the substance can be put back to how it was before. Irreversible ...

Vapour degreasing solvents are typically chosen for their excellent solvency properties. They have the ability to dissolve and disperse a wide range of contaminants, including dirt, oil, grease, wax, ...