Science Common Sense

168 - Why do some reactions produce gas?

Imagine the tiny particles that make up everything, called atoms and molecules. When a chemical reaction happens, these particles rearrange themselves into new combinations.

In some reactions, the particles combine in a way that releases a gas, like air bubbles in a soda. This is because the new combination is too big to stay as a liquid or solid, so it turns into a gas and escapes. That's why you might see bubbles or hear a hissing sound when a reaction produces a gas.

Think of it like baking a cake with baking powder. When it gets hot, the baking powder releases carbon dioxide gas, making bubbles that make the cake rise. It's a fun and cool way that chemistry works.