question Which method involves the separation of ions based on their mobility in a buffer solution under the influence of an electric field

Chemistry

Which method involves the separation of ions based on their mobility in a buffer solution under the influence of an electric field?

A. Ion chromatography
B. Gas chromatography
C. Liquid chromatography
D. Thin-layer chromatography

Ion chromatography separates ions based on their mobility in a buffer solution under an electric field.

What is the IUPAC name for CH₃CH₂CH₂NH₂?

A. Ethylamine
B. Propylamine
C. Butylamine
D. Ethylmethanamine

According to the Second Law of Thermodynamics, the entropy of the universe tends to:

A. Increase
B. Decrease
C. Remain constant
D. Depend on the system

The chemical equation 2HgCl₂ + C₂H₅OH → 2Hg + 2HCl + CH₃CHO represents a:

A. Displacement
B. Synthesis
C. Decomposition
D. Redox

Which of the following is a noble gas?

A. Neon
B. Sodium
C. Chlorine
D. Sulfur

What is the expression for the Arrhenius equation, which describes the temperature dependence of reaction rates?

A. k = A * e^(-Ea/RT)
B. k = A * e^(Ea/RT)
C. k = A * e^(-RT/Ea)
D. k = A * e^(RT/Ea)

In the chemical equation 2N₂ + 3H₂ → 2NH₃, what type of reaction is occurring?

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

The reaction between an acid and a metal produces:

A. Hydrogen gas
B. Oxygen gas
C. Carbon dioxide
D. Nitrogen gas

The chemical equation 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O represents a:

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

The concept of the "noble gas configuration" refers to an atom's similarity to the:

A. Nearest noble gas
B. Noble gas one period down
C. Noble gas two periods down
D. Noble gas one group over

What is the IUPAC name for CH₃CH₂CH₂CH₂CH₃?

A. Pentane
B. Butane
C. Hexane
D. Propane