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Which electron configuration could represent the electrons in a sodium atom in an excited state?
5
E
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Na2C2O4
C3H6
Diamond has a different crystal structure from graphite.
H–O
2-7-2
Which equation represents a single replacement reaction?
5
E
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Na2C2O4
C3H6
Diamond has a different crystal structure from graphite.
H–O
2-7-2
What is the number of valence electrons in a nitrogen atom in the ground state?
5
E
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Na2C2O4
C3H6
Diamond has a different crystal structure from graphite.
H–O
2-7-2
What is the molecular formula for this compound?
5
E
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Na2C2O4
C3H6
Diamond has a different crystal structure from graphite.
H–O
2-7-2
The bond between which two atoms is most polar?
5
E
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Na2C2O4
C3H6
Diamond has a different crystal structure from graphite.
H–O
2-7-2
Graphite and diamond are both solid forms of the element carbon. Which statement explains the different properties of these two forms of carbon?
5
E
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Na2C2O4
C3H6
Diamond has a different crystal structure from graphite.
H–O
2-7-2
What is the chemical formula for sodium oxalate?
5
E
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Na2C2O4
C3H6
Diamond has a different crystal structure from graphite.
H–O
2-7-2
Which atom has a mass of 12 u?
5
E
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Na2C2O4
C3H6
Diamond has a different crystal structure from graphite.
H–O
2-7-2
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