1. Show the class pictures of five very different mammals, such as a cat, kangaroo, horse, rabbit, and monkey. Explain that all these animals are mammals, and that mammals constitute one class of the animal kingdom, which also includes other classes, such as reptiles, birds, and fish. Ask students what these five mammals have in common and mark their responses on a sheet of chart paper.
When ionic compounds are in a molten state or dissolved in water, forming an aqueous solution, the ions that formed the ionic compounds are able to move around freely, thus able to conduct electricity.
Acids and Bases. Atoms can gain or lose electrons in order to form ions in a process called ionization (compounds formed in this way are called ionic compounds).When ionic compounds dissolve in water, their ions separate from one another in a process called dissociation.One interesting feature of water and many other covalent compounds is that they too can dissociate into ions.cids and Bases. Atoms can gain or lose electrons in order to form ions in a process called ionization (compounds formed in this way are called ionic compounds).