The chemical formula for potassium peroxide is
A) KOH.
B) KO2.
C) K2O.
D) K2O2.
Correct Answer:
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Q69: The compound,NO2,is named
A)nitrate.
B)nitrite.
C)nitrogen dioxide.
D)nitrogen(IV)oxide.
Q70: The thiosulfate ion is
A)HS-.
B)HSO42-.
C)SO52-.
D)S2O32-.
Q71: What group of elements does the shaded
Q72: What group of elements does the shaded
Q73: Which of the following statements concerning ionic
Q75: What group of elements does the shaded
Q76: The gas Freon-11,CCl3F,contains
A)C4+,Cl-,and F- ions.
B)C4+,Cl3-,and F- ions.
C)C4+
Q77: KH2PO4 is
A)hydropotassium phosphate.
B)potassium dihydrogen phosphate.
C)potassium diphosphate.
D)potassium hydrogen(II)phosphate.
Q78: What group of elements does the shaded
Q79: The ion NO2- is named
A)nitrate ion.
B)nitrite ion.
C)nitrogen
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