What happens when you combine Hydrogen peroxide and yeast??

By: Lakshmi and Maddie

Hydrogen Peroxide- A colorless, unstable, oily liquid, H 2 O 2 , an aqueous solution of which is used chiefly as an antiseptic and a bleaching agent.

Yeast- any of various small, single-celled fungi of the phylum Ascomycota that reproduce by fission or budding, the daughter cells often remaining attached, and that are capable of fermenting carbohydrates into alcohol and carbon dioxide.

The Experiment

2H2O2 --> 2H2O + O2   

                                                             

Graph-

This reaction is exothermic. The highest temperature during this reaction was 34 degrees Celsius. The lowest temperature during this reaction was 24 degrees Celsius. The reactants in this reaction were hydrogen peroxide and yeast, and the products were water and oxygen. A chemical reaction occurred because the temperature changed and it foamed.

Citations:

dictionary.reference.com

mgect.org

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