Which of the following is a binary compound?
A) HCN
B) O₂
C) LiBr
D) Na₂SO₄
Correct Answer:
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Q61: How many electrons are there in a
Q62: An ionic bond is formed when electrons
Q63: A covalent bond is formed when a
Q64: The formula for the compound calcium bromide
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Q67: The anion formed when oxygen gains two
Q68: The prefix which means seven is
A)hexa.
B)hepta.
C)octa.
D)tetra.
Q69: Covalent bonds generally form between
A)ions.
B)metals.
C)metals and nonmetals.
D)nonmetals.
Q70: For which atom is it difficult to
Q71: The formula of aluminum oxide is
A)AlO.
B)AlO₂.
C)AlO₃.
D)Al₂O₃.
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