1 FACT: Protection against whooping cough from early childhood vaccines may wear off, leaving adults and adolescents at risk for infection.  FACT: In China, whooping cough is known as the âcough of 100 daysâ due to the prolonged, dry cough that is experienced by infected individuals.
Which compound contains ionic bonds 1. CaO because Ca is a metal and O is a gas and all the other possibillities are gasses combined and ionic has a metal and gas combination if you look at the periodic table of el â¦ ements the right side is gases but they are determined by like a staircase and the rest are metals.
1 An ionic compound is a collection of an equal number of positive and negative ions arranged in a three-dimensional lattice. 2  Ionic compounds can be dissociated into their constituent ions with little effort. 3  Further they can be electrolyzed to produce elements or covalent molecules of the constituent atoms. Further they can be electrolyzed to produce elements or covalent molecules of the constituent atoms. 2  Water also weakens the attraction between the ions in an ionic compound. 3  This is why ionic compounds dissolve well in water. 4  Moreover ionic compounds can conduct electricity.