Different reactions of acid

🧪 Reactions of Acids with Other Substances

Acids are powerful chemical substances that show different types of reactions depending on what they interact with. In this article, we explore the reactions of acids with bases, metals, non-metals, carbonates, and bicarbonates in a simple and interactive way.

1️⃣ Acid + Base → Salt + Water

🧬 This is called a Neutralization Reaction

When an acid reacts with a base, it forms salt and water. This reaction is known as neutralization and it helps in reducing the effect of both acid and base.

HCl + NaOH → NaCl + H₂O

✔️ This is an exothermic reaction (heat is released).

2️⃣ Acid + Metal → Salt + Hydrogen Gas

🧪 Formation of Hydrogen Gas

Acids react with reactive metals like zinc, magnesium, and iron to form salt and release hydrogen gas.

Zn + 2HCl → ZnCl₂ + H₂↑

⚠️ You’ll often see bubbles (effervescence) due to gas release.

3️⃣ Acid + Non-Metal Oxide → No Reaction

🚫 No Chemical Change Occurs

Acids do not react with non-metal oxides like carbon dioxide (CO₂), as both are acidic in nature.

CO₂ + HCl → ❌ No Reaction

🔍 Non-metal oxides are acidic, hence no acid-acid reaction occurs.

4️⃣ Acid + Carbonate → Salt + Water + Carbon Dioxide

🎈 Fizzing Due to CO₂ Formation

Acids react with carbonates like calcium carbonate (chalk) to form salt, water, and carbon dioxide gas.

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂↑

🫧 You can observe fizzing or bubbles due to carbon dioxide release.

5️⃣ Acid + Bicarbonate → Salt + Water + Carbon Dioxide

🧁 Common in Baking Soda Reactions

Acids react with bicarbonates like sodium bicarbonate (baking soda) to form salt, water, and CO₂.

NaHCO₃ + HCl → NaCl + H₂O + CO₂↑

🎉 This reaction is commonly used in baking for leavening.