Classify each chemical compound: compound HC1 SeS₂ NiC1₂ type of compound Oionic O ionic O ionic O molecular O molecular O molecular

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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# Predicting Whether a Compound is Ionic or Molecular

## Classify Each Chemical Compound

In this exercise, you will determine if the given compounds are ionic or molecular. Use the table below to classify each chemical compound:

| **Compound** | **Type of Compound** |
|--------------|-------------------------|
| HCl          | ⦿ Ionic  ⃝ Molecular   |
| SeS₂         | ⃝ Ionic  ⦿ Molecular   |
| NiCl₂        | ⃝ Ionic  ⦿ Molecular   |

### Explanation:

- **HCl**: This compound is classified as ionic. Ionic compounds are formed when there is a transfer of electrons between atoms, leading to the formation of ions. Typically, such compounds consist of a metal and a non-metal.

- **SeS₂**: This compound is classified as molecular. Molecular compounds are formed when atoms share electrons through covalent bonds, and they usually consist of non-metals.

- **NiCl₂**: Although marked as molecular, NiCl₂ is typically considered an ionic compound. This may be an error in the example, as nickel (Ni) typically forms ionic compounds with non-metals like chlorine (Cl).

Understanding the differences between ionic and molecular compounds aids in predicting properties such as solubility, melting and boiling points, and electrical conductivity.
Transcribed Image Text:# Predicting Whether a Compound is Ionic or Molecular ## Classify Each Chemical Compound In this exercise, you will determine if the given compounds are ionic or molecular. Use the table below to classify each chemical compound: | **Compound** | **Type of Compound** | |--------------|-------------------------| | HCl | ⦿ Ionic ⃝ Molecular | | SeS₂ | ⃝ Ionic ⦿ Molecular | | NiCl₂ | ⃝ Ionic ⦿ Molecular | ### Explanation: - **HCl**: This compound is classified as ionic. Ionic compounds are formed when there is a transfer of electrons between atoms, leading to the formation of ions. Typically, such compounds consist of a metal and a non-metal. - **SeS₂**: This compound is classified as molecular. Molecular compounds are formed when atoms share electrons through covalent bonds, and they usually consist of non-metals. - **NiCl₂**: Although marked as molecular, NiCl₂ is typically considered an ionic compound. This may be an error in the example, as nickel (Ni) typically forms ionic compounds with non-metals like chlorine (Cl). Understanding the differences between ionic and molecular compounds aids in predicting properties such as solubility, melting and boiling points, and electrical conductivity.
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