Write down the steps which correctly describe the steps required to decide whether or not a precipitate forms when two aqueous s
1 answer:
The correct question is as follows.
place the steps required to determine whether or not a precipitate forms when two solutions are mixed in the correct order.
-consider possible cation-anion combinations
-note the ions present in the reactions
-use the solubility rules to determine whether or not either of the combinations gives an insoluble salt
Explanation:
A precipitate is an insoluble substance formed due to chemical reaction between two aqueous solutions. But it is not necessary that two aqueous solutions will always give an insoluble solid substance on chemical reaction with each other.
For e.g.
Here, AgCl is the precipitate formed.
Hence, correct steps that are required to decide whether or not a precipitate forms when two aqueous solutions are mixed:
1). note the ions present in the reactants
2). consider possible cation-anion combinations
3). use the solubility rules to determine whether or not either of the combinations gives an insoluble salt
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Answer:
Explanation:
The movement of the electrons is illustrated in the picture attached to this answer. It is a four-step reaction mechanism.
First STEP: The first step involves the transfer of an electron from sodium to form a radical anion.
Second STEP: This radical anion then removes a proton/hydrogen from ammonia in a bid to neutralize itself (hence the hydrogen becomes bonded to the anion).
Third STEP: The sodium (from NaNH₂ formed) transfers an electron again to produce a vinyl carbanion.
Fourth STEP: The carbanion then removes a proton/hydrogen from ammonia (like in the second step) to form a neutral trans-alkene.
NOTE: The circled numbers denote each step while the mechanism on the left represents the use of any alkyl group (R and R') while the mechanism on the right assumes both alkyl groups are methyl. Hence, 2-butyne started the reaction and the final product was trans-2-butene.
