Worksheet: Naming Molecular Compounds Answer Key

Worksheet: Naming Molecular Compounds Answer Key – Naming compounds is a key concept in chemical science. It involves the assignment of a unique name to an chemical compound, based on its composition. When you name a compound provides crucial information about its properties and its structure. There are many types of chemical compounds, such as covalent compounds, ionic compounds the binary type of compounds.

Naming Ionic Compounds

Ionic compounds can be formed by electron transfer from atoms. They consist with positively charged, cations as well as negatively charged anion. The rules for naming ionic compounds are as the following:

1. Inscribe the name of cation first, followed by its name.
2. If the cation may have more than one possible charge, indicate the charge using Roman numerals within parentheses.
3. If the anion is a polyatomic Ion, choose the name of the Ion.

Examples:

• NaCl is a name for sodium chloride.
• FeCl3 is known as iron(III) chloride.
• Mg(NO3)2 is known as magnesium Nitrate.

Naming Covalent Compounds

Covalent compounds arise from sharing electrons among atoms. They are made up of molecules composed comprised of two or three atoms. The guidelines for naming compounds that are covalent are as the following:

1. Inscribe the name and the first element of the formula.
2. Enter“ide” in place of “ide” of the formula, and change the end“-ide” to “-ide”.
3. Use prefixes for the amount of atoms that make up every element of the molecule. The exception is the prefix “mono-” for the first element.

Examples:

• CO2 is a carbon dioxide derived name.
• N2O is named dinitrogen monoxide.
• So, SF6 is a sulfur hexafluoride.

Naming Binary Compounds

Binary compounds are those made by two elements. The rules for the name of binary compounds are below:

1. Note the name of first element of the formula.
2. Enter“Name” for second element in the formula, and change the ending“ide “-ide”.

Examples:

• The term hydrogen chloride refers to the HCl.
• CO is known as carbon monoxide.
• Calcium oxide is also known as.

Practice Exercises

For reinforcement of learning in the classroom, the worksheet contains activities for practicing naming ionic and covalent substances, or binary substances. These exercises will help students achieve a good understanding of the rules that govern the naming of chemical compounds.

Ionic Compound Naming Exercises:

1. Na2S
2. KBr
3. CaF2
4. Al2O3

Covalent Compound Naming Exercises:

1. CO
2. SO2
3. N2O4
4. H2O2

Binary Compound Naming Exercises:

1. Cl2O7
2. P2S5
3. BrF3
4. NO

In completing these tests, students will become more confident in making chemical compounds known and be able apply the rules to other chemical compounds.

Conclusion:

Naming compounds is an essential concept in chemistry . It requires a deep understanding of these rules as well as guidelines to names for different kinds of compounds. By following the rules outlined in this worksheet and experimenting using the exercises included, students can confidently identify ionic and covalent along with binary and covalent compounds. This skill is essential to the success of chemistry and provides the foundation for future studies in the area.

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