question Which type of bond results from the sharing of electrons with a significant difference in electronegativity

Chemistry

Which type of bond results from the sharing of electrons with a significant difference in electronegativity?

A. Polar covalent
B. Nonpolar covalent
C. Ionic
D. Metallic

Polar covalent bonds have unequal electron sharing due to electronegativity differences.

In the chemical equation C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂, what type of reaction is occurring?

A. Fermentation
B. Combustion
C. Synthesis
D. Decomposition

The compound NH₄Cl is commonly known as:

A. Ammonium chloride
B. Ammonium nitrate
C. Ammonium sulfate
D. Ammonium carbonate

What happens to the pH of a solution when it becomes more acidic?

A. Decreases
B. Increases
C. Remains constant
D. Becomes neutral

What is the primary function of DNA helicase during DNA replication?

A. Unwinding the DNA double helix
B. Synthesizing a new DNA strand
C. Repairing damaged DNA
D. Reading the RNA code

The concept of electron spin is described by which quantum number?

A. Spin
B. Magnetic
C. Principal
D. Azimuthal

What is the name of the phenomenon where electrons are ejected from a metal surface by light?

A. Photoelectric effect
B. Compton scattering
C. Wave-particle duality
D. Quantum tunneling

What is the term for a bond formed by the attraction between two atoms sharing electrons, with a significant difference in electronegativity?

A. Polar covalent
B. Nonpolar covalent
C. Ionic
D. Metallic

What is the maximum number of electrons in a d sublevel?

A. 2
B. 6
C. 10
D. 14

What is the pH range of neutral solutions?

A. 7
B. 0 to 6
C. 8 to 14
D. 1 to 7

What is the balanced chemical equation for the reaction between hydrochloric acid (HCl) and sodium sulfite (Na₂SO₃)?

A. 2HCl + Na₂SO₃ → 2NaCl + H₂O + SO₂
B. HCl + Na₂SO₃ → NaCl + H₂O + SO₂
C. HCl + Na₂SO₃ → NaCl + H₂O + 2SO₂
D. 2HCl + Na₂SO₃ → 2NaCl + H₂O + 2SO₂