Q43: Magnesium reacts with oxygen to form
A)MgO.
B)Mg₂O.
C)MgO₂.
D)Mg₃O₂.
Q44: A sodium ion is
A)Na⁺.
B)Na²⁺.
C)Na⁻.
D)Na²⁻.
Q45: Chlorine forms monatomic ions with a charge
Q46: When magnesium combines with oxygen,the reaction involves
Q47: Potassium reacts with iodine to form
A)KI.
B)K₂I.
C)KI₂.
D)K₂I₃.
Q49: Which substance has ionic bonds?
A)Br₂
B)NH₃
C)H₂O
D)LiI
Q50: In reactions to form ionic compounds,metals generally
A)lose
Q51: Calcium reacts with chloride to form
A)CaCl.
B)CaCl₂.
C)Ca₂Cl.
D)Ca₂Cl₃.
Q52: When magnesium reacts with chlorine,the reaction involves
Q53: Which substance has ionic bonds?
A)O₂
B)BaO
C)H₂O
D)OF₂
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