Worksheet 2.2 Naming Compounds Answers

Worksheet 2.2 Naming Compounds Answers – Naming compounds is a fundamental idea in chemistry. It involves granting a unique name to compounds based upon its composition. Names of chemical compound provides important information about its properties and structures. There are different types that chemical compounds can be found, including ionic compounds, covalent compounds, as well as binary compound.

Naming Ionic Compounds

Ionic compounds are created by transfers of electrons across atoms. They consist mostly of positively charged electrons as well as negatively charged anions. The criteria for naming ionic compounds are as the following:

1. Write the name of Cation first, then your name and the name of the anion.
2. If the cation could have more than one charge then indicate the charge using Roman numerals inside parentheses.
3. If the anion is a polyatomic Ion, identify the ion.

Examples:

• NaCl is named sodium chloride.
• FeCl3 is named iron(III) chloride.
• Mg(NO3)2 is also known as magnesium-nitrate.

Naming Covalent Compounds

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

1. Enter the name of the first element of the formula.
2. Write“Element 2” as the title of the formula, and change the end to “-ide”.
3. Prefixes are used to indicate the number of atoms for every element of the molecule. There is no prefix for the prefix “mono-” for the first element.

Examples:

• CO2 is named carbon dioxide.
• N2O is named dinitrogen monoxide.
• The term SF6 stands for sulfur hexafluoride.

Naming Binary Compounds

Compounds that are binary are those made up of two elements. The rules for the naming of binary compounds are as they are:

1. Then write the name of first element in the formula.
2. Write an appropriate name for each element of the formula, changing the end in the form of “-ide”.

Examples:

• Hydrogen chloride is also known as hydrogen.
• CO is a synonym for carbon monoxide.
• The name CaO comes from calcium oxide.

Practice Exercises

To help reinforce learning in the classroom, the worksheet contains practices for naming ionic elements, covalent components, or binary substances. These activities will help students get a better understanding of the rules to name 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

After completing these tasks, students will have confidence the identification of chemical compounds, and will be able to apply these rules to other chemical compounds.

Conclusion:

Naming compounds is an important idea in chemistry that requires a solid understanding of basic rules and procedures to creating names for different kinds and types of compounds. If you follow the rules laid out in this worksheet and experimenting with the included exercises students will be able to easily identify ionic, covalent, and other binary chemicals. This knowledge is essential for succeeding in chemistry and creates the foundation for future research in the field.

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