Of the 8 causes of Trench mouth that we have listed, we have the following prevalence/incidence information: 1  1 causes are very common diseases. 2  0 causes are common diseases. 3  0 causes are uncommon diseases.  0 causes are rare 1  diseases. 0 causes are very rare diseases.  7 causes have no prevalence information.
An Ionic compound consists of a bond between a metal and a nonmetal element. So the answer would be ..... Ionic compounds are usually formed when a metal reacts with a nonmetal. So the answers would be c. and d. because lithium is a metal, chlorines a nonmetal , sodiums a metal iodines a nonmetal.
Here are the properties shared by the ionic compounds. Notice that the properties of ionic compounds relate to how strongly the positive and negative ions attract each other in an ionic bond. 1  Ionic compounds form crystals. 2  Ionic compounds form crystal lattices rather than amorphous solids.