Woodlandgirl14
20.11.2020 •
Chemistry
An element identity is defined by its number of
A.protons
B.neutrons
C.electrons
D.orbitals
Solved
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Ответ:
Answer
Hi,
The correct answer option is {C} A chemical change because a gas was produced.
Explanation
In this experiment, the yeast acts on the sugar to produce carbon dioxide gas that fills the bottle and then the balloon. This process is called fermentation. Chemical changes occur in the bottle, were the sugar is turned to alcohol, carbon dioxide and energy. This is possible because yeast produces an enzyme maltase responsible for glucose formation which can ferment.
Best Wishes!