FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 9: Chemical Bonding I: the Covalent Bond

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 1

Multiple Choice

Review LaterAdd Note

Review Later

The covalent bond with the greatest polarity would form in which of the atom pairs below?

A) Br - Br
B) S - O
C) C - P
D) C - O
E) B - O

Correct Answer

verified

Show Answer

Question 2

Multiple Choice

Review LaterAdd Note

Review Later

Which one of the following is most likely to be a covalent compound?

A) KF
B) CaCl₂
C) SF₄
D) Al₂O₃
E) CaSO₄

Correct Answer

verified

Show Answer

Question 3

Multiple Choice

Review LaterAdd Note

Use bond energies to estimate the enthalpy change for the reaction of one mole of CH₄ with chlorine gas to give CH₃Cl and hydrogen chloride. BE(C-H) = 414 kJ/mol BE(C-Cl) = 326 kJ/mol BE(H-Cl) = 432 kJ/mol BE(Cl-Cl) = 243 kJ/mol

The Lewis dot symbol for the calcium ion is

What is total number of lone pairs in the best Lewis structure for SOF₄ that exceeds the octet rule (S is the central atom) ?

A polar covalent bond would form in which one of the following pairs of atoms?

Which one of the following is most likely to be a covalent compound?

The formal charge on the sulfur atom in the resonance structure of sulfur dioxide which has one single bond and one double bond is

Which of the following solids would have the lowest melting point?

What is the formal charge on the singly bonded oxygens in the Lewis structure for the carbonate ion?

The bond in which of the following pairs of atoms would be the least polar (i.e., lowest percent ionic character) ?

Write the Lewis structure for the product that forms when boron trifluoride combines with ammonia.

What is the formal charge on sulfur in the best Lewis structure for the SCN^- (thiocyanate) ion?

Write a Lewis structure for the phosphate ion, PO₄^3-, that obeys the octet rule, showing all non-zero formal charges, and give the total number of resonance structures for PO₄^3- that obey the octet rule.

Use bond energies to estimate the enthalpy of formation of HBr(g) . BE(H-H) = 436 kJ/mol BE(Br-Br) = 192 kJ/mol BE(H-Br) = 366 kJ/mol

Which of the following ionic solids would have the largest lattice energy?

What type of chemical bond holds the atoms together within a water molecule?

Write a Lewis structure for the chlorite ion, ClO₂^-, that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s).

Write a Lewis structure for SO₃ that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s).

Which of the following solids would have the highest melting point?