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.
This is a common property shared with salts. Acids, bases and salts are grouped together into a category called electrolytes, meaning that a water solution of the given substance will conduct an electric current. Non-electrolyte solutions cannot conduct a current. The most common example of this is sugar dissolved in water. -----... So far, the properties have an obvious relationship: taste, color change, mutual destruction, and response to electric current. This last property is related, but in a less obvious way. The property below identifies a unique chemical reaction that acids and bases engage in. Acid Property #5.