Chemical Equation

Science / Chemistry / Chemical Equation: A compact notation for describing a chemical change. The formulas of the reactants are added together on the left hand side of the equation; the formulas of the products are added together on the right side. Coefficients are inserted before the formulas to ensure that the equation is balanced. The phase in which each substance is found is usually indicated in parentheses after each formula. For example, 2 H2(g) + O2(g) = 2 H2O(g) indicates that 2 moles of hydrogen gas combine with one mole of oxygen gas to produce two moles of steam.

Thermochemical Equation

Science / Chemistry / Thermochemical Equation: An compact equation representing a chemical reaction that describes both the stoichiometry and the energetics of the reaction. For example, the thermochemical equation CH4(g) + 2 O2(g) rightarrow CO2( MORE

Ionic Equation

Science / Chemistry / Ionic Equation: An ionic equation is a balanced chemical equation in which strong electrolytes are written as dissociated ions. For example, Ag+(aq) + NO3-(aq) + Na+(aq) + Cl-(aq) = agcl(s) + Na+(aq) + NO3-(aq) is an MORE

Molecular Equation

Science / Chemistry / Molecular Equation: A molecular equation is a balanced chemical equation in which ionic compounds are written as neutral formulas rather than as ions. For example, agno3(aq) + nacl(aq) = agcl(s) + nano3(aq) is a molecula MORE

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