When calcium reacts with sulfur the compound formed is ________.
A) Ca2S2
B) Ca3S2
C) CaS
D) CaS2
E) Ca2S3
Correct Answer:
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Q171: Iron and chlorine form an ionic compound
Q172: The name of the ionic compound V2O3
Q173: The formula for zinc phosphate is Zn3(PO4)2.What
Q174: The formula of the chromate ion is
Q175: The formula of ammonium carbonate is _.
A)(NH4)2CO3
B)NH4CO2
C)(NH3)2CO4
D)(NH3)2CO3
E)N2(CO3)3
Q177: The ions Ca2+ and PO43- form a
Q178: The formula for aluminum hydroxide is _.
A)AlOH
B)Al3OH
C)Al2(OH)3
D)Al(OH)3
E)Al2O3
Q179: Chromium and chlorine form an ionic compound
Q180: The name of PCl3 is _.
A)potassium chloride
B)phosphorus
Q181: An atom of 14C contains _ electrons.
A)14
B)20
C)8
D)10
E)6
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