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.
It should. While it may seem the airlines have cornered the market on fees, they may have a little competition from hotels and at least one cruise line. Carnival's $49.95 Faster to the Fun fee is being tested on two ships starting later this month â the Imagination and the Liberty.