QUESTION IMAGE
Question
the passage describes a chemical reaction. read the passage. then, follow the instructions 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.
complete the table to classify the substances in this chemical reaction.
| substance | reactant | product |
|---|---|---|
| ethanol (c₂h₆o) | ||
| glucose (c₆h₁₂o₆) |
Step1: Understand reactants and products
Reactants are substances that start a chemical reaction, products are substances that are formed.
Step2: Analyze the chemical - reaction description
Yeast breaks down glucose. Glucose is consumed, so it is a reactant. Carbon dioxide and ethanol are formed during the process, so they are products.
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| Substance | Reactant | Product |
|---|---|---|
| ethanol ($C_2H_6O$) | $\checkmark$ | |
| glucose ($C_6H_{12}O_6$) | $\checkmark$ |