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Thermochemical Equations definitions

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  • Thermochemical Equation

    A balanced chemical equation paired with an enthalpy value, showing heat change during a reaction.
  • Enthalpy of Reaction

    The heat energy change associated with a chemical reaction, often represented as delta H.
  • Stoichiometry

    The numerical relationship between reactants and products in a balanced chemical equation.
  • Thermochemical Stoichiometric Chart

    A visual tool connecting given quantities of one compound to unknowns in another, using enthalpy and mole relationships.
  • Balanced Chemical Equation

    A symbolic representation of a chemical reaction with equal numbers of each atom on both sides.
  • Mole

    A counting unit in chemistry representing 6.022 x 10^23 particles, used to relate quantities in reactions.
  • Coefficient

    A number in front of a chemical formula in an equation, indicating the relative amount of each substance.
  • Grams

    A mass unit often converted to moles to relate physical quantities to chemical equations.
  • Molecule

    A group of atoms bonded together, representing the smallest unit of a chemical compound.
  • Formula Unit

    The simplest ratio of ions represented in an ionic compound.
  • Ion

    An atom or group of atoms with a net electric charge due to loss or gain of electrons.
  • Atom

    The smallest unit of an element, retaining its chemical properties.
  • Delta H

    A symbol representing the enthalpy change in a chemical reaction.
  • Mole-to-Mole Comparison

    A calculation using coefficients from a balanced equation to relate amounts of different substances.