Which class of biomolecules includes chitin, a structural component in the exoskeleton of arthropods?

The reaction of an alkene with hydrogen in the presence of a metal catalyst is known as:

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

The group of elements known as halogens includes:

What is the common name for sodium hydroxide (NaOH)?

The Joule-Thomson effect describes the change in temperature of a gas during:

The principle that electrons fill the lowest energy orbitals first before pairing up is known as:

The chemical equation 2Fe + 3CuSO₄ → 3Cu + 2Fe(SO₄)₃ represents a:

The equation ΔU = Q - W represents the:

What is the term for a bond formed by the attraction between the positive end of one molecule and the negative end of another molecule?