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By: Victoria De Leon

Traffic Lights - Periodic Table of Videos

Traffic lights

This experiment is the way the traffic lights work and it is a a single replacement and i know that a chemical reaction took place because there was a change in color. The balanced equation is C4H4O6 + 3H2O2 2CO2(g) + 2HCO+ 4H2O.
Sodium and Water in a 40 gallon trash can

Water and sodium in a trash can

The experiment is taking water and sodium and putting them together to make it blow up. This chemical reaction is a double replacement. I know that a chemical reaction happened because the garbage can exploded. The balanced 2Na + 2H2O -> 2NaOH + H2
Burning magnesium in dry ice

Glowing dry ice

This is a chemical reaction of magnesium being burned in dry ice. This reaction is a single replacement. I know that a chemical reaction took place because light was given off. The balanced equation is 2 Mg + CO2 → 2 MgO + C