The correct answer should be D
D. The subscript 2 indicates that two atoms of aluminum are present in the substance.
<u>Explanation:</u>
Actually, the formula of alumina is Al₂O₃
The subscript 2 tells us that there are 2 Al (Aluminum) atoms, and the subscript 3 says that there are 3 oxygen atoms, so D is the accurate statement.
Choice A is wrong as 3 is not the coefficient, and it is a subscript.
Choice B is wrong since the subscript 2 meant for the aluminium atoms, and not the oxygen atoms.
Finally, choice C is also wrong since the symbol Al refers to the metal aluminium, and not the oxygen.
Answer:
E
Explanation:
I think it's E because it best explains what summarizing is in my opinion.
Answer:
Henry David Thoreau's Walden is an example of a Bright Romantic work because it shows the value of self-reliance and simplicity. His learning during his isolation is evident in this excerpt "I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived." "The Birthmark" of Nathaniel Hawthorne is work of Dark Romanticism since it contains themes such as foolishness of striving for perfection and science versus nature. The madness of Alymer is shown in this passage "With her whole spirit she prayed that, for a single moment, she might satisfy his highest and deepest conception. Longer than one moment she well knew it could not be; for his spirit was ever on the march, ever ascending, requiring something that was beyond the scope of the instant before."
I think it is C because A is missing commas, B doesn't need them and D doesn't need one.