Question

this passage describes a chemical reaction. read the passage. then, answer the question below.
why are there often holes in slices of bread? the holes are created by bubbles of carbon dioxide gas (co₂) that form in the bread dough before and during baking. these bubbles form when single - celled organisms called yeast break down glucose (c₆h₁₂o₆), a sugar in flour. in addition to carbon dioxide gas, a substance called ethanol (c₂h₆o) forms during this process.
in the chemical reaction described in the passage, which of the following are reactants? select all that apply.
glucose (c₆h₁₂o₆) carbon dioxide (co₂)
ethanol (c₂h₆o)

Explanation:

In a chemical reaction, reactants are the substances that undergo a change. The passage states that yeast breaks down glucose (\(C_6H_{12}O_6\)). So, glucose is a reactant. Carbon dioxide (\(CO_2\)) and ethanol (\(C_2H_6O\)) are the products formed from the breakdown of glucose.

Answer:

glucose (\(C_6H_{12}O_6\))