Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below. nitrous acid HNO2 H iodine heptafluoride I IF7 methanol CH3OH N V F O V H C O

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**Assigning Oxidation Numbers in Compounds**

Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below.

### Nitrous Acid
**Chemical Formula:** HNO₂

Elements:
- **H (Hydrogen):** [Dropdown Box]
- **N (Nitrogen):** [Dropdown Box]
- **O (Oxygen):** [Dropdown Box]

---

### Iodine Heptafluoride
**Chemical Formula:** IF₇

Elements:
- **I (Iodine):** [Dropdown Box]
- **F (Fluorine):** [Dropdown Box]

---

### Methanol
**Chemical Formula:** CH₃OH

Elements:
- **H (Hydrogen):** [Dropdown Box]
- **C (Carbon):** [Dropdown Box]
- **O (Oxygen):** [Dropdown Box]

---

For each compound, use the dropdown boxes to select the appropriate oxidation number for each element based on oxidation rules.
Transcribed Image Text:**Assigning Oxidation Numbers in Compounds** Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below. ### Nitrous Acid **Chemical Formula:** HNO₂ Elements: - **H (Hydrogen):** [Dropdown Box] - **N (Nitrogen):** [Dropdown Box] - **O (Oxygen):** [Dropdown Box] --- ### Iodine Heptafluoride **Chemical Formula:** IF₇ Elements: - **I (Iodine):** [Dropdown Box] - **F (Fluorine):** [Dropdown Box] --- ### Methanol **Chemical Formula:** CH₃OH Elements: - **H (Hydrogen):** [Dropdown Box] - **C (Carbon):** [Dropdown Box] - **O (Oxygen):** [Dropdown Box] --- For each compound, use the dropdown boxes to select the appropriate oxidation number for each element based on oxidation rules.
**Instructions for Writing Net Ionic Equations**

- Be sure to specify states such as (aq) or (s).
- If a box is not needed, leave it blank.
- If no reaction occurs, leave all boxes blank and click on "Submit".
- Use H⁺ for the hydronium ion.

**Task:**

Write a net ionic equation for the reaction that occurs when excess hydrochloric acid (aq) and iron(II) sulfide are combined.

**Equation Format:**

[___] + [___] → [___] + [___] + [___]

**Explanation:**

This section guides students through creating net ionic equations, emphasizing the importance of indicating the physical states of the compounds involved. It allows for the assessment of students' understanding of ionic reactions, ensuring clarity in chemical notation.
Transcribed Image Text:**Instructions for Writing Net Ionic Equations** - Be sure to specify states such as (aq) or (s). - If a box is not needed, leave it blank. - If no reaction occurs, leave all boxes blank and click on "Submit". - Use H⁺ for the hydronium ion. **Task:** Write a net ionic equation for the reaction that occurs when excess hydrochloric acid (aq) and iron(II) sulfide are combined. **Equation Format:** [___] + [___] → [___] + [___] + [___] **Explanation:** This section guides students through creating net ionic equations, emphasizing the importance of indicating the physical states of the compounds involved. It allows for the assessment of students' understanding of ionic reactions, ensuring clarity in chemical notation.
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