Science Common Sense

1312 - What phenomena often accompany chemical reactions?

When chemical reactions happen, you might notice some cool things happening around you. Here are some phenomena that often accompany chemical reactions:

1. Bubbles or foams: This means a gas is being released, like when you mix baking soda and vinegar.
2. Color change: The mixture can change color, like when you mix food coloring with bleach.
3. Heat or cold: Chemical reactions can release or absorb heat, making the mixture feel warm or cool to the touch.
4. Light or sparks: Some reactions can produce light or sparks, like when you burn a firework.
5. Sounds: You might hear hissing, bubbling, or other sounds when a reaction happens, like when you open a fizzy soda.

These phenomena happen because the atoms are rearranging themselves, creating new substances with different properties.