![]() ![]() Note: You can use other related calculator Chemical Equation Balancer. Therefore the polyatomic ion for the above positive and negative ions is Lithium Chloride. Chemistry Calculators & Solvers Chemical Reactions Chemical Compounds Chemical Solutions Calculations Gas Laws Organic Chemistry Calculators Fun. This is to show that the subscript applies to the entire polyatomic ion. The hydroxide cation (OH-) and the phosphate cation (PO3− 4) are both polyatomic ions.īarium has a +2 charge and hydroxide has a -1 charge, thereforeġ Ba 2+ ion is required to balance 2 OH- ions Ammonium has a +1 charge and phosphate has a -3 charge, thereforeģ NH 4 + ions are required to balance 1 PO 4 3- ion Potassium has a +1 charge and sulfate has a -2 charge, thereforeĢ K + ions are required to balance 1 SO 4 2- ionĬalculate the polyatomic ion for the given positive and negative ions. If more than one of a particular polyatomic ion is needed to balance the charge, the entire formula for the polyatomic ion must be enclosed in parentheses, and the numerical subscript is placed outside the parentheses. For example, H 2 O and H 2 O 2 represent two different but very similar chemical formula of water and hydrogen peroxide respectively, where hydrogen peroxide has an extra oxygen atom. Polyatomic ions consist of multiple atoms that combine with other ions to form an ionic compound. The chemical formula helps us to identify what elements are present in a particular compound, and how many (means the atomicity of each element). In an ionic compound, electrons are transferred to atoms and molecules imparting a charge on both the donor and recipient of the electron.Ī polyatomic ion considers two or more atoms at a time as constituents. Phosphate - PO 43- Cation and Anion calculatorĪ polyatomic ion, also known as a molecular ion, is a charged species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered as acting as a single unit in the context of acid and base chemistry or in the formation of salts.īy putting the positive ion and the negative ion in the respective boxes, you can find the scientific name of that polyatomic by using ion calculator. Write down the information you have for the charges of the component ions and balance them to answer the problem.īicarbonate (or hydrogen carbonate) - HCO 3. When there are two or more polyatomic ions in a formula, enclose the polyatomic ion in parentheses. When you write the formula for an ionic compound, remember that the positive ion is always listed first.
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