Which amino acid is considered essential, meaning it must be obtained from the diet because the body cannot synthesize it?

What does the term "titration" refer to in analytical chemistry?

What is the standard enthalpy change (ΔH°) for a chemical reaction carried out under standard conditions?

Which molecule serves as the primary energy currency in cells, providing energy for various cellular processes?

Which quantum number distinguishes between different orbitals of the same energy level?

The substance that can act as both an acid and a base is called:

The transition metals are found in which block of the periodic table?

What is the primary function of ATP synthase in cellular respiration?

What is the balanced chemical equation for the reaction between sodium sulfide (Na₂S) and hydrochloric acid (HCl)?

What is the pH of a solution with a hydroxide ion concentration of 1 x 10⁻⁸ M?