Patient Comments Read 7 Comments Share Your Story. Strep throat is a contagious disease caused by infection with streptococcal bacteria, which causes inflammation and swelling of the mucous membranes lining the back of the throat and the tonsils.hough strep throat is the most common bacterial cause of sore throat, it is important to note that most cases of sore throat are in fact due to a viral infection (caused by a virus). A viral sore throat typically improves on its own and does not require treatment with antibiotics.
Indium Compounds. The indium compound that is widely recognized today is indium tin oxide (ITO), a transparent conductor that is essential for building flat panel displays and touch sensors. TVs, computer monitors, tablets and smart phones all use ITO to enable the switching of pixels and to register touch events.
Ionic compounds are easily recognized because they contain a metal and a nonmetal. Covalent compounds are those which contain only nonmetals. The periodic table in the front cover of your text shows which elements fall into each class. The names for ionic compounds are very simple. The first part of the name is simply the name of the metal element. The second part of the name is the name of the nonmetal element, with the ending changed to the suffix âide. For example, consider the compound Al 2 O 3. While the subscripts indicate that the compound consists of two atoms of aluminum and three atoms of oxygen, these numbers do not affect the name. The first part of the name would be aluminum. For the second part of the name, we drop the ending on oxygen and add âide, thus it becomes oxide. The name of the compound is then aluminum oxide. When an ionic compound contains a transition metal, the names become a bit more complicated. The metals in the d and f blocks can have more than one charge and can thus form more than one compound. For example, iron and chlorine form two different compounds, FeCl 2 and FeCl 3. To distinguish them,