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Chemical Reactions and Equations

  • In a chemical reaction, at least one of the following will occur:
  • Change in state
  • Change in colour
  • Evolution of a gas
  • Change in temperature
  • Formation of a precipitate

 


A chemical equation is the symbolic representation of a chemical reaction in the form of chemical formulae, signs, symbols, and directions. In which the reactant entities are given on the left-hand side and the product entities on the right-hand side.
  • Balanced chemical equation

Reactants → Products

LHS                 RHS

Total number of atoms on the LHS = Total number of atoms on the RHS

  • How to balance an e…

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