Precipitation Reactions and Net Ionic Equations - Chemistry

This chemistry video tutorial explains how to balance and predict the products of precipitation reaction in addition to writing the net ionic equation.
Chemistry 1 Final Exam Review: • General Chemistry 1 Re...
Solubility Rules - Free Reference Sheet:
bit.ly/3AaJdW6
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Stoichiometry Practice Test:
• How To Solve Stoichiom...
Solute, Solvent, & Solution:
• Solute, Solvent, & Sol...
Strong & Weak Electrolytes:
• Identifying Strong Ele...
Molarity Practice Problems:
• Molarity Practice Prob...
Ion Concentration in Solutions:
• Ion Concentration in S...
Dilution Problems:
• Dilution Problems, Che...
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Types of Chemical Reactions:
• Types of Chemical Reac...
Solubility Rules:
• Solubility Rules
Predicting The Products of Reactions:
• Predicting The Product...
Activity Series of Metals:
• Activity Series of Met...
Will This Reaction Occur?
• Chemistry - Will The R...
Predicting Products of SR Reactions:
• Predicting Products of...
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Double Replacement Reactions:
• Introduction to Double...
Net Ionic Equations:
• Precipitation Reaction...
Writing Chemical Equations from Words:
• How To Write Chemical ...
Solution Stoichiometry:
• Solution Stoichiometry...
Molarity & Dilution Problems:
• Molarity Dilution Prob...
Acid Base Neutralization Reactions:
• Acid Base Neutralizati...
____________________________________
Acid Base Titration Problems:
• Acid Base Titration Pr...
Mixture Problems:
• Mixture Problems
Calculating Oxidation Numbers:
• How To Calculate Oxida...
Oxidation and Reduction Reactions:
• Oxidation and Reductio...
Balancing Redox Reactions:
• Half Reaction Method, ...
Ideal Gas Law Problems:
• Ideal Gas Law Practice...
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Final Exams and Video Playlists:
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Full-Length Videos and Worksheets:
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Polyatomic Ions Formula Sheet:
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[@TheOrganicChemistryTutor]

Solubility Rules - Free Reference Sheet: bit.ly/3AaJdW6 Polyatomic Ions - Free Formula Sheet: bit.ly/4e9F2YT Chemistry 1 Final Exam Review: kzbin.info/www/bejne/a6raYox-bL50bcU

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[@fanaticflame6946]

Its a transition metal, so they generally have different ions (depending on which given one) In the question, he used Pb(NO3)2, tracing back on the criss-cross method, that shows that the lead (Pb)charge used in that reaction would be +2, If it was Pb(NO3)4 then the lead (Pb) charged used would be Pb+4 @@marlenegarcia6811 😀

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Hello, how do I know if a precipitation forms or not? how do i know which if the precipitate?

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[@vqxm7]

i have a question someone please answer why did he leave 2AgCl in the products at 4:52? why didn't you separate it and write the charge like you did with ca(no3)2?

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4:13 Why was there a 2 out in front of Cl-?

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Why do you leave the PbBr2 as it is and not seperate them?

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are double displacement and precipitation rection same??

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Hello, how do you determine the state of a new combined ion? I am just confused about whether this new ion is aqueous or solid or liquid or gas? Thank you!

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why you did not put the subscript on cl2? AgCL2

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hi how do I find charges of the elements?

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How do you know each nitrate has a +1 to get a +2 charge from Pb? 6:30

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3:30 - If it's insoluble, you write it labeled as a solid and not Aq, right?

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@5:22 when you write the final met ionic equation, why do you not include the coefficient 2 with the Ag+?

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He did

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Everything was divisible by 2. You want the lowest known integer

[@BikesandBoulders]

For 7:38 there are 2 NO3's so wouldn't you write Na2(NO3)2? Since (NO3)2 would have a -2 charge as there are two of them so it would require 2 NA's ?

[@youtube_cws1969]

NO3 still has a -1 charge but there's two of them to match the 2+ charge of lead. When you combine Na and NO3 together they both have a -1 charge so it becomes NaNO3. Na2(NO3)2 is just reduced to NaNO3 since everything is divisible by 2.

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The phrase he uses for ions that are the same on both sides of the equation is "spectator ions". I agree with Addie Jane, I learned more in ten minutes than in an hour lecture.

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What's the purpose of "cross-swap", and when is it necessary?

[@5kunk157h35h17]

It just makes it simpler to see how many molecules are needed for each. If the former has +1 and the latter -2, you need two of the former to stabilize with one of the latter. It's not necessary but could be used to double check that your answer is right. That's what i think at least.

[@kevinmason9592]

Confusion: at 10:16 you say that Pb has to have a +2 charge because there are 2 NO3's which make a -2 charge. So you're manipulating the charge of the PB to match the polyatomic ion. However, if I look at a periodic table, I see Pb being in the column that is + or minus - 4. So my question is, why don't we manipulate the charge of the polyatomic ion to match the charge of the lead, and five the NO3 a -2 charge?

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Pb has multiple oxidation states because it’s a transitioning metal but No3 is at a constant state of -. So we add more No3 to even it out.

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Can I ask why didn't you consider that 2 of chlorine when trying to find the products ?

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Why didn't Cl2 get moved over to the product side?

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1:02 why do you only write Cl instead of Cl2? I don't understand that part. Please help I'm struggling on my chem homework lol ughhh

[@kaitlynmcgoey6479]

Hey! I know that this is super late, but if anyone else has this question, it is because Cl is an ION when (/after) going through this reaction. Therefore, it does not need to be marked as a diatomic element - which is why it typically has a 2 beside it as Cl2. That is also the reason that he is emphasizing the importance of finding the correct charges. (Because they are all ions). Hope this helps!

[@አልህምድሊላህበእላህሰም]

@@kaitlynmcgoey6479 no need for all of that its just because the Cl oxidation number is -1 thats why

[@gauravchanda4567]

why are ions exchanged in double displacement reaction

[@BrotherIntel]

because its a precipitation reaction

[@shaniaj.6263]

Can somebody explain why there is a 1 in front of ca? I don't get it.

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in the first question i don't understand why you combined NO3 and Ca together. Shouldnt Ca be combining with Ag?

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[@sofiaaguirre109]

Is it possible for an equation to have only one spectator ion?

[@cierraharwart]

do you have to divide by two for the net ionic equation or can you leave it with a coefficient?

[@adryerwithabrickinit9231]

Cierra Harwart you divide it by the greatest common factor of all coefficients to simplify

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[@douglasw1545]

don't understand how you know the charges here of each element..

[@K9Raptor]

Douglas W Every element in a group has the same charge, you can calculate for the charge too by looking at the valence electrons, eg. Oxygen's valence electron would be 6 as 16-2-8, and you can see that it is missing 2 electrons for it to be stable, therefore it's charge would be -2.