If the formula of an oxide is X2O3,what is the formula of the chloride of X?
A) XCl
B) X3Cl
C) XCl3
D) XCl6
E) X2Cl3
Correct Answer:
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Q42: Which species is diamagnetic?
A)atomic sodium
B)atomic fluorine
C)iron(III)ion
D)calcium(II)ion
E)cobalt(II)ion
Q43: Which of the following has the smallest
Q44: List in order of increasing charge of
Q45: The number of valence electrons for atomic
Q46: List in order of increasing size: Cl-,Ar,K+,S2-,Ca2+.
A)Ca2+
Q48: Why is the electron affinity slightly positive
Q49: Which of the following species is most
Q50: Which of the following reactions gives a
Q51: List in order of increasing atomic size:
Q52: Which of the following species is diamagnetic?
A)F-
B)C
C)Al
D)S-
E)Na
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