H2SO4. + CH3OH + HBr -

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Transcription and Explanation:**

The image comprises three chemical equations illustrating reactions involving an alkene.

1. **First Reaction:**
   - **Reactants:** An alkene (isobutylene) + Methanol (CH₃OH)
   - **Catalyst:** Sulfuric acid (H₂SO₄)
   - **Description:** This depicts an acid-catalyzed addition of methanol to an alkene, commonly leading to ether formation. Sulfuric acid acts as a catalyst to facilitate this reaction, which likely produces a methoxy ether.

2. **Second Reaction:**
   - **Reactants:** An alkene (isobutylene) + Hydrogen bromide (HBr)
   - **Description:** This reaction illustrates the addition of hydrogen bromide to an alkene, a typical hydrohalogenation process. The resulting product is an alkyl halide, with the bromine atom adding across the double bond according to Markovnikov’s rule, where the hydrogen atom attaches to the less substituted carbon atom of the double bond.

3. **Third Reaction:**
   - **Reactants:** An alkene (isobutylene) + Chlorine (Cl₂)
   - **Description:** This shows the addition of chlorine to an alkene, a type of halogenation reaction. The double bond of the alkene opens up to form a vicinal dichloride, where each of the carbon atoms originally involved in the double bond attaches to a chlorine atom.

These reactions are fundamental concepts in organic chemistry, demonstrating various methods of adding different groups to alkenes, thereby transforming them into more complex functionalized molecules.
Transcribed Image Text:**Transcription and Explanation:** The image comprises three chemical equations illustrating reactions involving an alkene. 1. **First Reaction:** - **Reactants:** An alkene (isobutylene) + Methanol (CH₃OH) - **Catalyst:** Sulfuric acid (H₂SO₄) - **Description:** This depicts an acid-catalyzed addition of methanol to an alkene, commonly leading to ether formation. Sulfuric acid acts as a catalyst to facilitate this reaction, which likely produces a methoxy ether. 2. **Second Reaction:** - **Reactants:** An alkene (isobutylene) + Hydrogen bromide (HBr) - **Description:** This reaction illustrates the addition of hydrogen bromide to an alkene, a typical hydrohalogenation process. The resulting product is an alkyl halide, with the bromine atom adding across the double bond according to Markovnikov’s rule, where the hydrogen atom attaches to the less substituted carbon atom of the double bond. 3. **Third Reaction:** - **Reactants:** An alkene (isobutylene) + Chlorine (Cl₂) - **Description:** This shows the addition of chlorine to an alkene, a type of halogenation reaction. The double bond of the alkene opens up to form a vicinal dichloride, where each of the carbon atoms originally involved in the double bond attaches to a chlorine atom. These reactions are fundamental concepts in organic chemistry, demonstrating various methods of adding different groups to alkenes, thereby transforming them into more complex functionalized molecules.
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