Answer:
H2 is Molecular hydrogen. It is a molecule of hydrogen that consists of two hydrogen atoms bonded together by one single bond (also known as a sigma bond). A subscript also denotes how many of a particular atom is in a molecule, thus H2 has two hydrogens. 2H, on the other hand, denotes two moles of elemental hydrogen.
Answer:
Explanation:
For most cases, you would you a if the next word starts with a consonant.
If the next word starts with a vowel (a, e, i, o, u), you would use "an" Although there may be a few exceptions.
In this case, if you say apple, it starts with a vowel. Therefore, you should use an.
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El Patron did not have a very good childhood. Matt is a clone of Patron so Patron wanted Matt to live his childhood.
Shakespeare is alerting the audience to the conflict between Claudius and Hamlet: A
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