what must happen before a chemical reaction can begin?\no the activation energy must be exceeded.\no the…
what must happen before a chemical reaction can begin?\no the activation energy must be exceeded.\no the activation energy must be reached.\no the concentrations of products and reactants must be equal.\no the concentration of reactant molecules must be reduced.
Answer
Brief Explanations:
Activation energy is the minimum energy required for a chemical reaction to start. Once this energy is reached, reactant - molecules can transform into products. Equal concentrations of products and reactants relate to equilibrium, not the start of a reaction. Reducing reactant concentration doesn't initiate a reaction.
Answer:
The activation energy must be reached.