Chemistry Prompts

Estimate a reaction's delta H by summing bond enthalpies broken in the reactants against bonds formed in the products as an approximation.

Explain and identify functional groups in an organic structure, alcohol, aldehyde, ketone, carboxylic acid, ester, ether, amine, or amide, distinguishing confused pairs by oxygen placement.

Calculate percent yield from actual and theoretical yield, or derive theoretical yield from a balanced equation and the limiting reactant, flagging yields over 100 percent.

Identify the cathode and anode from standard reduction potentials, calculate cell potential, determine reaction spontaneity, and link the result to Gibbs free energy.

Solve for the enthalpy change of a reaction from calorimetry data, calculating heat first and then dividing by moles, using an engineering heat-transfer framing.

Write a Ksp expression from a dissolution equation, solve for molar solubility using stoichiometric exponents, or work a common ion effect problem.

Solve for genotype frequencies from an allele frequency, work backward from a population sample, or check equilibrium against the five Hardy-Weinberg assumptions.

Generate a redox equation, balance its oxidation and reduction half-reactions separately, then combine them into one balanced net equation with electrons and spectators canceled.

Generate mole-to-mole and mass-to-mass stoichiometry problems from a balanced equation with full worked answer keys, or check a worked answer against an existing problem.

Generate a set of hydrocarbon combustion equations to balance, with difficulty control over fuel complexity and atom-count verification for each answer.

Predict whether an ionic compound dissolves in water using solubility rules and their exceptions, and classify a substance as a strong, weak, or nonelectrolyte.

Explain why atoms form ionic, polar covalent, or nonpolar covalent bonds using electronegativity difference and a metal-or-nonmetal check, or classify an element pair or compound.

Balance a chemical equation step by step, producing a full atom-count table for each element to verify the coefficients before finalizing the answer.

Generate method-of-initial-rates practice problems that determine reaction orders, build the rate law, and calculate the rate constant, or check a submitted worked answer.

Generate periodic table element identification problems from an atomic number, symbol, property clue, or position clue, with group, period, and classification justified.

Generate pH and pOH practice problems requiring conversion between H+, OH-, pH, and pOH using log and antilog relationships, with a full worked answer key.

Generate molality practice problems dividing moles of solute by kilograms of solvent, showing every conversion step with an answer key inline or at the end.

Build a Keq expression, calculate Keq from concentrations, solve an ICE table for equilibrium concentrations, or predict a Le Chatelier shift under stress.

Explain how to read activation energy and delta H from a reaction coordinate diagram, and how a catalyst lowers both activation energies without moving endpoints.

Calculate the molar mass of a chemical formula with a full element-by-element table, atomic masses to two decimal places, and every parenthetical group multiplied correctly.

Solve for an unknown force or distance in a rigid body at rotational equilibrium, balancing torques and forces with every step shown and verified.

Explain the four quantum numbers as nested rules for an electron, pair them with s, p, and d orbital shapes, or derive a valid combination.

Generate M1V1 = M2V2 dilution practice problems that solve for any of the four variables, including multi-step serial dilution chains, with each equation rearranged first.

Generate IUPAC naming practice for alkanes, alkenes, and alkynes with substituents, numbering the longest chain for lowest locants and alphabetizing substituents, or check a name.