Binary molecular compound names

Many binary molecular compounds were discovered and given common names long before the modem naming system was developed. Table 9-2 lists some of these molecules, their common names, and the binary molecular compound names. 

I Translate molecular formulas into binary molecular compound names. I Name acidic solutions. 

Naming Binary Molecular Compounds Name the compound P2O5, which is used as a drying and dehydrating agent. 

When two nonmetals combine with each other, the product is most often a binary molecular compound. There is no simple way to deduce the formulas of such compounds. There is, however, a systematic way of naming molecular compounds that differs considerably from that used with ionic compounds. 

The systematic name of a binary molecular compound, which contains two different nonmetals, consists of two words. 

A few binary molecular compounds containing H atoms ionize in water to form H+ ions. These are called acids. One such compound is hydrogen chloride, HC1 in water solution it exists as aqueous H+ and Cl- ions. The water solution of hydrogen chloride is given a special name It is referred to as hydrochloric acid. A similar situation applies with HBr and HI ... 

Binary molecular compounds are named by using Greek prefixes to indicate the number of atoms of each element present the element named second has its ending changed to -ide. 

Naming binary molecular compounds requires using Greek prefixes to indicate the number of atoms of each element in the compound or molecule. Prefixes are given in Table 1.4. Prefixes precede each element to indicate the number of atoms in the molecular compound. The stem of the second element takes the ide suffix. The prefix mon is dropped for the initial element that is, if no prefix is given, it is assumed that the prefix is 1. Examples of molecular compounds are carbon dioxide (C02), carbon monoxide (CO), and dinitrogen tetroxide (N204). 

Many simple inorganic molecular compounds are named by using the Greek prefixes in Table D.2 to indicate the number of each type of atom present. Usually, no prefix is used if only one atom of an element is present an important exception to this rule is carbon monoxide, CO. Most of the common binary molecular compounds—molecular compounds built from two elements—have at least one element from Group 16 or 17. These elements are named second, with their endings changed to -ide ... 

Certain binary molecular compounds have common names that are widely used (Table D.3). The phosphorus oxides are distinguished by a... 

Binary molecular compounds are named by assuming that one of the two elements in the molecule is more cationlike and the other element is more anionlike. As with ionic compounds, the cationlike element takes the name of the element itself, and the anionlike element takes an -ide ending. The compound HF, for example, is called hydrogen fluoride. 

Because nonmetals often combine in different proportions to form different compounds, numerical prefixes are usually included in the names of binary molecular compounds to specify the numbers of each kind of atom present. The... 

Identify the names of binary molecular compounds from their formulas. 

The anesthetic dinitrogen oxide (N2O), commonly known as nitrous oxide, is a covalently bonded compound. Because it contains only two different elements, it is a binary molecular compound. Binary molecular compounds are composed of two different nonmetals and do not contain metals or ions. Although many of these compounds have common names, they also have scientific names that reveal their composition. Use the following simple rules to name binary molecular compounds. 

Using the system of rules for naming binary molecular compounds, describe how you would name the molecule N2O4. 

For binary molecular compounds (compounds with only two elements), the name begins with the name of the element that is farthest to the left and lowest in the periodic table. The name of the second element is given the suffix -ide and a Greek number prefix is used on the first element if necessary (e.g., dinitrogen tetroxide, N204). 

Name the following binary molecular compounds (a) AsFj, (b) Br20, (c) BrFj, (d) CSc2, (e) CI2O7. 

Binary molecular compounds are named by writing the two elements in the order they are found in the formula, changing the ending of the second element to -ide, and adding Greek prefixes to the element names to indicate how many atoms of each are present. 

Let s look at more names of binary molecular compounds to see how these rules are applied ... 

Correctly name the following binary, molecular compounds. 

Questions 19 through 21, names and formulas of binary molecular compounds, (page 52)... 

Unlike ionic compounds, molecular compounds contain discrete molecular units. They are usually composed of nonmetallic elements (see Figure 2.8). Many molecular compounds are binary compounds. Naming binary molecular compounds is similar to naming binary ionic compounds. We place the name of the first element in the formula first, and the second element is named by adding -ide to the root of the element name. Some examples are... 

Nearly all binary molecular compounds involve two nonmetals bonded together. Although many nonmetals can exhibit different oxidation numbers, their oxidation numbers are not properly indicated by Roman numerals or suffixes. Instead, elemental proportions in binary covalent compounds are indicated by using a prefix system for both elements. The Greek and Latin prefixes for one through ten are mono, di, tri, tetra, penta, hexa, hepta, octa, nona, and deca. The prefix mono- is omitted for both elements except in the common name for CO, carbon monoxide. We use the minimum number of prefixes needed to name a compound unambiguously. The final a in a prefix is omitted when the nonmetal stem begins with the letter o we write heptoxide, not heptaoxide. ... 

Specific rules are used when naming binary molecular compounds, binary acids, and oxyacids. 

Start with a binary molecular compound. Note that a binary molecular compound is composed only of two nonmetal atoms—not metal atoms or ions. An example is dinitrogen monoxide (N2O), a gaseous anesthetic that is more commonly known as nitrous oxide or laughing gas. The naming of nitrous oxide is explained in the following rules. 

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