Cool Science Experiment

A double replacement reaction is performed using potassium chromate and silver nitrate, resulting in the formation of a red precipitate identified as silver chromate.

An experiment demonstrating air pressure involves attempting to crush a water bottle, followed by using ethanol and fire to create a vacuum inside the bottle. The combustion process creates heat, expelling air molecules. Sealing the bottle results in the external air pressure crushing it.

The combustion inside the bottle leaves water as a byproduct, along with carbon dioxide. This demonstrates the products of the combustion process.