Molecule atoms can make and break chemical bonds {chemical reaction, inorganic}|. Chemical reactions make reactant molecules into product molecules. Chemical reactions typically release energy as heat.
energy release
Molecules have energy levels, with Boltzmann energy distribution. Reactants have higher ground-state potential energy and/or more widely spaced energy levels. If there is reaction path, molecules tend to become products, which have lower ground-state potential energy and/or less widely spaced energy levels. Potential-energy difference becomes kinetic energy and so heat. Products and heat have higher entropy than reactants.
reaction rate
Chemical-reaction rate depends on activation energy to go from reactants to products. Reaction rate depends on forward and backward chemical-reaction rates.
mass
Balanced chemical equations allow knowing reactant or product amounts from reactant or product amounts. Ratio between unknown reactant or product coefficient and known reactant or product coefficient equals ratio between unknown reactant or product moles and known reactant or product moles.
Physical Sciences>Chemistry>Inorganic>Chemical Reaction
5-Chemistry-Inorganic-Chemical Reaction
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Date Modified: 2022.0224