covalent bonds

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Which factor is the best guide to determine the covalent or ionic character of a bond?

Mass number of the atoms

Atomic radius of the elements

Melting point of the compound

Electronegativity difference between the atoms involved (correct)

What type of bond is generally formed between two nonmetals?

Covalent bond (correct)

Metallic bond

Coordinate covalent bond

Ionic bond

Which atoms are held together by polar covalent bonds in polyatomic ions?

Atoms in an ionic bond

Atoms sharing electrons unequally (correct)

Atoms in a metallic bond

Atoms with identical electronegativity

In potassium nitrate (KNO3), which type of bond exists between K+ and NO3− ions?

Ionic bond Signup and view all the answers

Which of the following bonds would have the highest polarity based on the electronegativity values provided?

Si–O Signup and view all the answers

In amino acids, which bond has the highest polarity?

O–H Signup and view all the answers

What type of compound is formed when polyatomic ions combine with ions of opposite charge?

Ionic compound Signup and view all the answers

'Silicones' are polymeric compounds containing which types of covalent bonds among others?

Si–O, Si–C, C–H, and H–H Signup and view all the answers

What kind of bond is expected between S and H in a covalent compound?

Nonpolar Covalent Bond Signup and view all the answers

What role do bond polarities play in determining protein structure?

Determining protein shape and stability Signup and view all the answers

Arrange the following covalent bonds found in amino acids in order of increasing polarity: C–H, C–N, C–O, N–H, O–H.

C–H, S–H, C–N, N–H, C–O Signup and view all the answers

In potassium nitrate (KNO3), what type of bonding exists between the K+ cation and the NO3− anion?

Ionic Signup and view all the answers

What types of covalent bonds are present in silicones, arranged in order of increasing polarity: Si–O, Si–C, C–H, C–C?

C–C, C–H, Si–C, Si–O Signup and view all the answers

What are the atoms designated as δ+ and δ– in the bond C–O?

Cδ+−Oδ− Signup and view all the answers

Explain the role of bond polarities in determining the structure of proteins.

Bond polarities play an important role in determining the structure of proteins by influencing the interactions between different amino acids. Signup and view all the answers

Which bond in amino acids has the highest electronegativity difference?

N–H Signup and view all the answers

In silicones, which covalent bond has the highest polarity?

Si–O Signup and view all the answers

What is the role of bond polarities in determining the structure of proteins?

Controlling protein folding Signup and view all the answers

What is the electronegativity difference between C and O in the bond C–O?

1.0 Signup and view all the answers

Which type of compound is formed when polyatomic ions combine with ions of opposite charge?

Ionic compound Signup and view all the answers

What factor is the best guide to determine the covalent or ionic character of a bond?

Electronegativity difference Signup and view all the answers

Between which two atoms do silicones typically have the lowest polarity bond?

C–C Signup and view all the answers

In potassium nitrate (KNO3), which type of bonding exists between the nitrogen and oxygen atoms in NO3−?

Covalent bonding Signup and view all the answers

What determines the structure of proteins?

Bond polarities Signup and view all the answers