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Chemical Bonding Basics Quiz

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Questions and Answers

What is the correct trend of electronegativity along a period in the periodic table?

Remains constant

Increases (correct)

Fluctuates

Decreases

In a covalent molecule, what determines whether a bond is polar or nonpolar?

Number of hydrogen atoms present

Electronegativity difference between the atoms (correct)

Size of the atoms

Atomic mass of the atoms involved

How is percentage yield calculated in a chemical reaction?

Theoretical yield divided by actual yield, then multiplied by 100%

Actual yield plus theoretical yield, then multiplied by 100%

Actual yield divided by theoretical yield, then multiplied by 100% (correct)

Theoretical yield minus actual yield, then multiplied by 100%

What is the major intermolecular force between two molecules when they exhibit hydrogen bonding?

Hydrogen bonding Signup and view all the answers

How do you name an ionic compound?

By writing the cation first and then the anion with its name modified Signup and view all the answers

What is Avogadro's number used for in chemistry?

To calculate molar mass of a compound Signup and view all the answers

What type of chemical reaction involves the transfer of electrons?

Oxidation-reduction reaction Signup and view all the answers

Which factor determines the shape and polarity of a covalent molecule?

Arrangement of atoms and lone pairs Signup and view all the answers

What is the major intermolecular force between two molecules in water (H2O)?

Hydrogen bonding Signup and view all the answers

Which of the following is a non-electrolyte?

Ethanol solution Signup and view all the answers

What is the main purpose of balancing a chemical equation?

To ensure the conservation of mass Signup and view all the answers

In a covalent compound, what does the Lewis structure indicate?

Electron arrangement of atoms only Signup and view all the answers

What does the molar mass of a compound represent?

Mass of one mole of molecules of the compound Signup and view all the answers