Sand snake

Sugar and baking soda make a black snake.

Scientific name: When the mixture of sugar and baking soda sets fire reagents decompose and react with oxygen.

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Safety

Wear eye protection goggles.There is a serious fire risk - a fire extinguisher should be ready.

Always follow general safety recommendations. Please note that conducting chemistry experiments you must comply with the relevant legal procedures in your country.

Perform this experiment

Reaction formula

C2H5OH + O2 → 2CO2 + 3H2O

2NaHCO3 → Na2CO3 + H2O + CO2

C12H22O11 + O2 → CO2 + 11H2O + 11C

Step-by-step instruction

  1. Mix two tablespoons of powdered sugar and two tablespoons of baking soda.
  2. Take some non-combustible surface like a ceramic plate.
  3. Pour sand on it in the shape of a volcano.
  4. Soak the sand with ethanol.
  5. Pour the sugar and baking soda mixture on top of the “volcano”.
  6. Ignite the “volcano” with a gas burner.

Scientific background

Sand soaked with ethanol is used as a burner for reagents – sugar and baking soda.

C2H5OH + O2 → 2CO2 + 3H2O

When the mixture sets fire reagents decompose and react with oxygen:

2NaHCO3 → Na2CO3 + H2O + CO2C12H22O11 + O2 → CO2 + 11H2O + 11C

The snake consists of sodium carbonate and black carbon particles.

Danger:
Coolness:
Difficulty:

Published on 18 April 2015

  • Fire
  • Heating with fire
  • Explosion
  • Poisoned gas
  • Organic
  • Electricity
  • Solution
  • Oxidation reduction
  • Color change
  • Precipitate
  • Gassing
  • Catalyst