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An acid is a substance that dissociates into hydrogen ions (H +) and anions in water. A quick way to identify acids is to see if there is an H (denoting hydrogen) in front of the molecular formula of the compound.
29 Ιουλ 2022 · Magnesium and nitrogen react to form an ionic compound. Predict which forms an anion, which forms a cation, and the charges of each ion. Write the symbol for each ion and name them. Solution. Magnesium’s position in the periodic table (group 2) tells us that it is a metal. Metals form positive ions (cations).
First, is the compound ionic or molecular? If the compound is ionic, does the metal form ions of only one type (fixed charge) or more than one type (variable charge)? Are the ions monatomic or polyatomic? If the compound is molecular, does it contain hydrogen? If so, does it also contain oxygen?
Metals form positive ions (cations). A magnesium atom must lose two electrons to have the same number electrons as an atom of the previous noble gas, neon. Thus, a magnesium atom will form a cation with two fewer electrons than protons and a charge of 2+. The symbol for the ion is Mg 2+, and it is called a magnesium ion.
Iron(II) phosphate, also ferrous phosphate, [3] Fe 3 (PO 4) 2, is an iron salt of phosphoric acid.
Names of Some Transition Metal Ionic Compounds. An old naming convention used the suffixes – ic and – ous to designate metals with higher and lower charges, respectively: Iron (III) chloride, FeCl 3, can be called called ferric chloride, and iron (II) chloride, FeCl 2, is also known as ferrous chloride.
In this case, the first compound will be called iron (III) chloride, and the second compound is iron (II) chloride. The key feature about naming ionic compounds is that you should be able to draw the structure from the name, and that you should be able to create the name from the structure.
