Which substance can be used to neutralize an acidic solution?*VinegarLemon juiceSodium bicarbonate (baking soda)

Sodium bicarbonate (baking soda) can be used to neutralize an acidic solution. Here's a step-by-step explanation:

1. Identify the acidic solution: An acidic solution has a pH less than 7.

2. Choose the neutralizing substance: In this case, we choose sodium bicarbonate, also known as baking soda. Vinegar and lemon juice are both acidic and therefore cannot be used to neutralize an acidic solution.

3. Add the sodium bicarbonate to the acidic solution: The amount of baking soda needed will depend on the volume and concentration of the acid.

4. Observe the reaction: When baking soda is added to an acidic solution, it reacts to form water, carbon dioxide, and a salt. This reaction increases the pH of the solution, neutralizing the acid.

5. Test the solution: You can use pH paper to test the solution. If the pH is now closer to 7, the solution has been neutralized.

Remember to always handle acids with care and use appropriate safety equipment.