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.
Types of Bonds Formed by Carbon - No, carbon doesn't only form covalent bonds. 1  Properties of Ionic and Covalent Compounds. 2  How Formulas of Ionic Compounds Work. 3  Use Electronegativity To Predict Ionic Bond Formation. 4  Know the Difference Between Ionic and Covalent Bonds. 5  Why the Formation of Ionic Compounds Is Exothermic.