Brainliesttt ! during an experiment a thermometer was placed in a beaker containing hydrogen peroxide. the following observations were recorded when yeast granules were added to hydrogen peroxide. observation 1: fizzing and bubbling took place. observation 2: the temperature began to rise. based on the observation, justify the type of change (physical or chemical) that took place.

A physical change has just occurred because a new substance was not formed, but it simply changed it's state.

Yeast reacts with hydrogen peroxide to produce oxygen and water. This evolved oxygen result in bubbling of the solution which is a chemical behavior.

Observation 1 is the bubbling of the solution in presence of yeast indicating the chemical property because, evolution of gas takes place on addition of yeast.

Observation 2 is the rise in temperature is a physical property. The physical property includes freezing point, melting point or rise in temperature or color.

Thus, Observation 1 is chemical behavior whereas Observation 2 is physical property.

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