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Exam 7: Chemical Bonds

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Question 31

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A polyatomic ion is an ion that ________.

A) has a negative charge < -1
B) contains both a metal and a nonmetal
C) develops a charge as a result of the combination of two or more types of atoms
D) occurs alone as do molecules

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Question 32

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What is the formula for the ionic compound which forms when Co³⁺ combines with SO₄^2-?

A) CoSO₄
B) Co₂(SO₄) ₃
C) Co(SO₄) ₂
D) Co₃(SO₄) ₂

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Question 33

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Which of the following molecules contains a triple covalent bond?

Indicate the total number of electrons which would be shown as "dots" in a correctly written Lewis structure for OF₂.

Draw the Lewis structures for the following compounds. Draw all possible resonance structures. What is the molecular geometry of each compound? -NO₃^-1

When drawing a Lewis structure, pairs of electrons that are not between atoms but are used to fill the octet of an atom are called ________.

How many valence electrons do atoms with the following electron configurations have? -1s²2s²2p⁵

The correct formula for the ionic compound containing Ni²⁺ and NO^3? ions is ________.

The geometry associated with three pairs of bonded electrons and one pair of nonbonded electrons about a central atom in a molecule is ________.

Four hypothetical elements, A, B, C and D, have the following electronegativities and periodic table positions: ‪ -The compound formed between W and Y would have:

How many valence electrons do atoms with the following electron configurations have? -1s²2s²2p⁶3s²3p⁶4s¹

Draw the Lewis structure for formic acid, HCOOH, in the order given.

Which of the following compounds contains an ion with a 3+ charge?

Four hypothetical elements, A, B, C and D, have the following electronegativities and periodic table positions: ‪ -The formula of the compound between X and Z would be:

Which of the following is the correct Lewis symbol diagram for carbon?

Which of the following is a nonpolar molecule containing polar bonds?

The notation Y^3- denotes a Y atom that has ________.

Determine the formula for the compound formed between the following pairs of elements and/or ions. -Cs and P₄

The ability of an atom to attract electrons to itself in a molecule is called ________.

Which bonding is not possible for carbon with its 4 valence electrons?