question The technique that measures the time dependent decay of excited state molecules to identify and quantify substances is called

The process of adding an acid or a base to a solution to adjust its pH is known as:

A. Titration
B. Neutralization
C. Precipitation
D. Oxidation

The reaction of an alcohol with a carboxylic acid in the presence of an acid catalyst is known as:

A. Esterification
B. Transesterification
C. Saponification
D. Hydrolysis

The compound Fe₂O₃ is commonly known as:

A. Iron(II) oxide
B. Iron(III) oxide
C. Iron(IV) oxide
D. Iron pentoxide

What is the term for a bond formed by the attraction between adjacent atoms with temporary dipoles?

A. London dispersion
B. Ionic
C. Covalent
D. Dipole-dipole

The reaction between an acid and a base to form water and a salt is known as:

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

Which acid is found in citrus fruits like lemons and oranges?

A. Citric acid
B. Acetic acid
C. Sulfuric acid
D. Hydrochloric acid

The quantum model suggests that electrons behave more like:

A. Waves
B. Particles
C. Clouds
D. Orbits

What is the product of the reaction between hydrochloric acid (HCl) and magnesium carbonate (MgCO₃)?

A. Magnesium chloride and water
B. Carbon dioxide and water
C. Magnesium chloride and carbon dioxide
D. Magnesium hydroxide and carbon dioxide

What is the color change of phenolphthalein when added to a basic solution?

A. Pink to colorless
B. Colorless to pink
C. Yellow to blue
D. Blue to yellow

What is the product of the reaction between sulfuric acid (H₂SO₄) and sodium hydroxide (NaOH)?

A. Sodium sulfate and water
B. Sodium hydroxide and sulfuric acid
C. Sodium sulfate and hydrogen gas
D. Water and sodium hydroxide