Question

According to naming rules, the types of compound that use prefixes in their names are ________. ionic compounds ionic compounds involving transition metals polyatomic ions molecular compounds compounds that contain polyatomic ions

Answer 1

Prefixes in compound names are used for molecular compounds which are generally formed by combinations of nonmetals, to specify the number of atoms of each element in the compound.

Step-by-step explanation:

The types of compounds that use prefixes in their names are molecular compounds. Unlike ionic compounds, which are usually composed of metals and nonmetals without prefixes, molecular compounds often consist of two nonmetals. To clearly indicate the number of atoms of each element in these compounds, chemists use prefixes such as mono-, di-, tri-, and so on. For example, SF6 is named sulfur hexafluoride, indicating it contains one sulfur atom and six fluorine atoms, and N2O4 is called dinitrogen tetroxide, revealing two nitrogen atoms and four oxygen atoms.

When it comes to ionic compounds with polyatomic ions, the naming rules do not require the use of prefixes. Names are simply derived from combining the name of the cation and the anion, such as NaNO3 for sodium nitrate and CaCO3 for calcium carbonate. It is important to memorize the names of common polyatomic ions to correctly write these compound names. Moreover, if the metal can form ions with different charges (often transition metals), a Roman numeral is used, such as FeCO3 being named iron(II) carbonate to indicate the iron ion has a +2 charge.

Answer 2

According to naming rules, the types of compound that use prefixes in their names are the covalent compounds. These are formed by sharing of valence electrons, by the atoms, and results in the formation of a covalent bond. For example, water and DNA.