Household bleach is typically a solution of sodium hypochlorite (NaClO) in water. Sodium hypochlorite is a strong base, and when dissolved in water, it raises the pH of the solution, making it alkaline.

Here's why it's important to know this:

* Mixing bleach with acidic substances is dangerous: Mixing bleach with acids like vinegar or toilet bowl cleaner can create toxic fumes, including chlorine gas.

* Bleach can damage certain surfaces: Bleach can damage materials like natural stone or some fabrics due to its alkaline nature.

* Proper handling is essential: When using bleach, always wear protective gear like gloves and ensure good ventilation.