Which is the correct lewis structure for ethylene, c2h4?
1 answer:
Remember this, when trying to find a valid lewis structure, every single atom must have a total of 8 shared electrons (full octet). Since I only have 4 hydrogens to work with, two on each carbon, I assumed a double bond in the middle. This way, every atom has a full octet, except for hydrogen which is most stable with just two electrons. If there were just a single bond in between the carbons, each carbon would only have a total of 6 shared electrons which violates the octet rule. So a double bond is a must. This is ethylene by the way.
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Answer : The rate law for the overall reaction is,
Explanation :
Rate law : It is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.
As we are given the mechanism for the reaction :
Step 1 : (slow)
Step 2 : (fast)
Overall reaction :
The rate law expression for overall reaction should be in terms of .
As we know that the slow step is the rate determining step. So,
The slow step reaction is,
The expression of rate law for this reaction will be,
Hence, the rate law for the overall reaction is,