Which of the following is NOT a valid ionic formula?
A) NaF
B) MgO
C) KCl2
D) CaF2
E) Na2O
Correct Answer:
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Q16: "Laughing gas" has the formula N2O.Which of
Q17: Which of the following is the formula
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Q20: Which of the following Lewis dot structures
Q22: Which group of elements forms anions?
A) noble
Q23: Which is the BEST Lewis structure for
Q24: Elements in group 1A of the periodic
Q25: In a covalent molecule
A) nonmetals share electrons.
B)
Q26: How many nonbonding electrons are in the
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