question The technique that measures the interaction of light with matter to identify and quantify substances is called

Chemistry

The technique that measures the interaction of light with matter to identify and quantify substances is called:

A. Spectrophotometry
B. Mass spectrometry
C. Electrochemistry
D. NMR spectroscopy

Spectrophotometry measures the interaction of light with matter to identify and quantify substances.

In DNA, guanine (G) pairs with which nucleotide?

A. Cytosine (C)
B. Adenine (A)
C. Thymine (T)
D. Uracil (U)

The reaction between an alkene and a peracid to form an epoxide is known as:

A. Epoxidation
B. Hydrogenation
C. Hydration
D. Halogenation

What is the maximum number of electrons in an f sublevel?

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

The chemical equation 4NH₃ + 5O₂ → 4NO + 6H₂O represents a:

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

The reaction between an acid and an alcohol to form an ester is known as:

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

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

Which type of bond is characterized by the attraction between positive and negative ends of polar molecules?

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

What type of isomerism is exhibited by molecules with the same molecular formula but different arrangements of atoms in space?

A. Stereoisomerism
B. Structural isomerism
C. Geometric isomerism
D. Optical isomerism

The element with the chemical symbol Pb is:

A. Lead
B. Lithium
C. Lanthanum
D. Lutetium

The compound KNO₃ is commonly known as:

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