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.
SrO, LiI, NH3, ICl, NH4Cl, SO2 Alright, I know that molecular compounds contain only nonmetals and ionic compounds generally contain both metals and nonmetals... also, ammonium compounds (those containing the NH4 cation) are examples of ionic compounds made up solely of nonmetals. I'm just not sure about... show more SrO, LiI, NH3, ICl, NH4Cl, SO2 Alright, I know that molecular compounds contain only nonmetals and ionic compounds generally contain both metals and nonmetals... also, ammonium compounds (those containing the NH4 cation) are examples of ionic compounds made up solely of nonmetals.