Let me share with you a difference between Acids and Bases.
| Aspect | Acids | Bases |
| Introduction | Acid is a substance that donate protons (H⁺ ions) | Base is a substances that accept protons (H⁺ ions) |
| pH range | Less than 7 | Greater than 7 |
| Taste | Sour | Bitter |
| Touch | Corrosive or irritating | Slippery or soapy |
| Electrical conductivity | Conduct electricity in solution | Conduct electricity in solution |
| Reaction with indicators | Turns blue litmus paper red | Turns red litmus paper blue |
| Reaction with metals | May react with certain metals to produce hydrogen gas | Do not react with most metals |
| Ionization state | Can be strong or weak acids | Can be strong or weak bases |
| Effect on litmus paper | Turns litmus paper red | Turns litmus paper blue |
| Reaction with carbonates | Produce carbon dioxide gas | Do not react with carbonates |
| Examples | · HCl · H₂SO₄ · Citric acid | · NaOH · KOH · NH₃ |