Question 1 (4 points)
(01.05 MC)
During an experiment a thermometer was placed in a beaker co...
Question 1 (4 points)
(01.05 MC)
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. (4 points)
Answers: 3
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