An example of a polyatomic ion is the hydroxide ion; consisting of one oxygen atom and one hydrogen atom, hydroxide has a charge of â1. Its chemical formula is O H â . An ammonium ion is made up of one nitrogen atom and four hydrogen atoms: it has a charge of +1, and its chemical formula is N H 4 + .Polyatomic ions are often useful in the context of acid-base chemistry or in the formation of salts.A polyatomic ion can often be considered as the conjugate acid/base of a neutral molecule. For example, the conjugate base of sulfuric acid (H 2 SO 4) is the polyatomic hydrogen sulfate anion (HSO 4 â).ts chemical formula is O H â . An ammonium ion is made up of one nitrogen atom and four hydrogen atoms: it has a charge of +1, and its chemical formula is N H 4 + . Polyatomic ions are often useful in the context of acid-base chemistry or in the formation of salts.
Cruises with Carnival Cruise Lines are mostly all-inclusive, which means the majority of the expenses incurred for a Carnival cruise vacation are included in the price. Cruise expenses can include accommodations, dining, entertainment, activities and youth programs.
Carnival expects Cuba trips to begin in 2016, once the venture gets the green light from Cuban authorities. Prices start at $2,990 per person with a $600 deposit. Claire West, a spokeswoman for Carnival, told The Huffington Post that the company has already begun meeting with Cuban officials.