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Use the drop-down menus to classify each of the following as an addition, substitution, elimination, or condensation reaction.

1. [tex] CH_3CHO + H_2O \rightarrow CH_3OCH_3 [/tex]
2. [tex] CH_2ClCH_2Cl + Zn \rightarrow C_2H_4 + ZnCl_2 [/tex]
3. [tex] CH_3CH_2Br + OH^{-} \rightarrow CH_3CH_2OH + Br^{-} [/tex]
4. [tex] 2 CH_3COOH \rightarrow (CH_3CO)_2O + H_2O [/tex]


Sagot :

Let's classify each of the given reactions according to the types of chemical reactions:

1. [tex]\( CH_3CHO + H_2O \rightarrow CH_3OCH_3 \)[/tex]

This reaction indicates that two molecules are joining together to form a larger molecule with the loss of a small molecule, typically water. This is characteristic of a condensation reaction.

2. [tex]\( CH_2ClCH_2Cl + Zn \rightarrow C_2H_4 + ZnCl_2 \)[/tex]

This reaction involves the removal of small molecules (in this case, halogens) from the reactant, leaving behind a double bond in a smaller product. This is characteristic of an elimination reaction.

3. [tex]\( CH_3CH_2Br + OH^- \rightarrow CH_3CH_2OH + Br^- \)[/tex]

In this reaction, a halogen atom is replaced by a hydroxyl group. The process where one atom or group of atoms in a molecule is replaced by another atom or group of atoms is governed by a substitution reaction.

4. [tex]\( 2CH_3COOH \rightarrow (CH_3CO)_2O + H_2O \)[/tex]

This reaction involves two molecules combining to form a single larger molecule with the release of a small molecule like water. Hence, this is classified as a condensation reaction.

Summarizing the classifications:

- [tex]\( CH_3CHO + H_2O \rightarrow CH_3OCH_3 \)[/tex]: Condensation
- [tex]\( CH_2ClCH_2Cl + Zn \rightarrow C_2H_4 + ZnCl_2 \)[/tex]: Elimination
- [tex]\( CH_3CH_2Br + OH^- \rightarrow CH_3CH_2OH + Br^- \)[/tex]: Substitution
- [tex]\( 2CH_3COOH \rightarrow (CH_3CO)_2O + H_2O \)[/tex]: Condensation
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