Addition

Addition is a reaction in which the molecules of two or more substances unite without the formation of a by-product.

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This animation shows the electron configuration of the calcium atom.

Surface tension of liquids 2

In this video we are experimenting with food colourings.

Homemade firefighting foam (observation)

We can produce carbon dioxide gas using sodium hydrogen carbonate and acetic acid. The carbon...

Homemade firefighting foam

We can produce carbon dioxide gas using sodium hydrogen carbonate and acetic acid. The carbon...

Like dissolves like

Non-polar substances dissolve in non-polar solvents while polar substances dissolve in polar...

Glowing heart

We burn a heart in a piece of paper with the help of oxygen produced upon the decomposition of...

Dissolution of NaCl

Common salt is dissolved by water: polar water molecules form a coat around the ions.

Phase transitions

A phase transition is the transformation of a substance from one state of matter to another.

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