What type of particles compose a nonelectrolyte ?

Explanation

### Step-by-Step Solution:

1. **Definition of Non-Electrolytes**: Non-electrolytes are substances that do not ionize in solution. This means that when they are dissolved in water or another solvent, they do not break apart into charged particles (ions).

2. **Composition of Non-Electrolytes**: The particles that compose non-electrolytes are typically molecules that are held together by covalent bonds. Unlike ionic compounds, which are made up of ions held together by ionic bonds, non-electrolytes do not form ions.

3. **Conductivity**: Because non-electrolytes do not dissociate into ions, they do not conduct electricity when dissolved in a solution. This is a key characteristic that differentiates them from electrolytes, which do conduct electricity due to the presence of free ions.

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