Ethanol is a chemical that can be synthetically produced from the sugars of plants, such as corn, using the fermentation reaction shown below. The reaction shows that sugar from plants can be broken down into ethanol and carbon dioxide, releasing heat.
sugar → ethanol + carbon dioxide + heat
In the United States, the sugar used to produce ethanol is commonly gained from corn—the same type of corn that is used for some foods, like corn flour, corn syrup, and corn oil. The ethanol can then be used as fuel in automobiles.
Scientists and engineers are working to develop ways to replace corn with a different plant, such as switchgrass, in the production of ethanol. This is largely because using corn to produce ethanol could cause a problem for society. Which statement describes this problem?
A.
Chemical processes that can transform corn's sugars into ethanol do not exist.
B.
Grass resources are scarce and could be used up if harvested to produce ethanol.
C.
Chemical processes that can release the chemical energy in ethanol do not exist.
D.
Corn grown for ethanol could take up field space that had been used to grow corn for food.
Answers: 2
Biology, 21.06.2019 22:00
Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.
Answers: 2
Biology, 22.06.2019 01:30
Jane is blood type a her husband is blood type b. jane is puzzled because their daughter is type o. explain how the daughter inherited a blood type that neither of her parents had explain your answer
Answers: 1
Biology, 22.06.2019 16:00
Need asap plz hurry im being timed when a body cell divides through the process of mitosis, the chromosomes in the daughter cells a. represent only the healthiest chromosomes from the parent cell. b. represent only half of the chromosomes in the parent cell. c. are identical to the chromosomes of the parent cell. d. are formed when chromosomes from the parent cell cross over.
Answers: 1
Biology, 22.06.2019 17:50
The graph shows how much money the south dakota livestock industry earns annually. according to the graph, which industry would experience the greatest financial impact from a loss of pastureland
Answers: 3
Ethanol is a chemical that can be synthetically produced from the sugars of plants, such as corn, us...
English, 27.02.2021 01:00
Mathematics, 27.02.2021 01:00
Mathematics, 27.02.2021 01:00
Social Studies, 27.02.2021 01:00
Mathematics, 27.02.2021 01:00
Chemistry, 27.02.2021 01:00
Mathematics, 27.02.2021 01:00
Mathematics, 27.02.2021 01:00
Mathematics, 27.02.2021 01:00
Mathematics, 27.02.2021 01:00
Health, 27.02.2021 01:00
History, 27.02.2021 01:00
Mathematics, 27.02.2021 01:00