HBr is mixed with water. Which is the best

description of what you would expect to find
in the solution?
1. Br1−, OH1−, and water molecules
2. HBr molecules and water molecules
3. H2Br+, OH1−, and water molecules
4. H3O+, Br1−, and water molecules
5. Br+, OH1−, and water molecules
6. HBr molecules, H3O+, Br1−, and water
molecules

HBr is a strong acid that does what HCl and HI do in water.

HBr + H2O ==> H3O^+ + Br^-

To determine the best description of what you would expect to find in the solution when HBr is mixed with water, let's analyze the components of each option:

1. Br1−, OH1−, and water molecules: HBr dissociates in water to form H+ and Br-. However, it does not generate OH- ions.

2. HBr molecules and water molecules: This option correctly suggests the presence of undissociated HBr molecules and water molecules.

3. H2Br+, OH1−, and water molecules: HBr does not form H2Br+ ions when mixed with water.

4. H3O+, Br1−, and water molecules: When HBr is mixed with water, it undergoes a proton transfer, forming H3O+ (hydronium) ions and Br- ions. This option accurately represents the expected composition of the solution.

5. Br+, OH1−, and water molecules: HBr dissociates into H+ and Br- ions, but it does not generate Br+ ions.

6. HBr molecules, H3O+, Br1−, and water molecules: This option entails all the components mentioned in the previous options (HBr molecules, H3O+, Br1−, and water molecules), so it is also an appropriate representation of the solution.

Therefore, the best description of what would be expected to find in the solution when HBr is mixed with water is option 4: H3O+, Br1−, and water molecules.