The elements in group 6A form ions with a charge of
A) +6
B) +2
C) -6
D) -2
Correct Answer:
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Q24: All chemical compounds must have a net
Q25: Which is a binary compound?
A)H2
B)H2O
C)CaSO4
D)KClO
Q26: What is the formula of magnesium sulfate?
A)MgS
B)MgSO3
C)MgSO4
D)MgSO
Q27: Which is a binary compound?
A)O2
B)O3
C)NaClO3
D)NaCl
Q28: The metals in group 2A form ions
Q30: What is the formula of barium oxide?
A)BaO
B)BaO2
C)Ba2O
D)Ba2O3
Q31: What is the formula of iron (III)oxide?
A)(FeO)
B)(Fe3O2
Q32: The elements in group 7A form ions
Q33: What is the formula of calcium nitrate?
A)Ca3N2
B)Ca(NO2)3
C)Ca(NO3)2
D)Ca(NO2)2
Q34: The metals in group 1A form ions
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