Chemical Reactions (2 of 11) Single Replacement Reactions, An Explanation
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- Опубликовано: 13 сен 2024
- Describes the basics of single replacement reactions, how to identify them, predict the product and balance the chemical equation. Two examples are also shown, Mg + AgNO3 and Al + CuCl2 You can see a listing of all my videos at my website, www.stepbysteps...
A chemical reaction is a process that leads to the chemical change of one set of chemical substances to another. Chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms. In a chemical reaction there is no change to the nuclei of the atoms. They can often be described by a chemical equation. Chemical equations are used to graphically illustrate chemical reactions. They consist of the chemical formulas of the of the reactants on the left and those of the products on the right. They are separated by an arrow (→) which indicates the direction and type of the reaction. The most common types of chemical reactions are: double replacement, single replacement, combustion, decomposition and synthesis.
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This was so helpful! Thank you so much for doing this. I have a chemistry test tomorrow and this is helping so much!
+Emma Waisman I the test went well. You can see a listing of all my videos at my website,www.stepbystepscience.com
Thank you so much for these videos and saving my chemistry grade!!
+Gregory Greiner Glad to be of help. Thanks for commenting. You can see a listing of all my videos at my website, www.stepbystepscience.com
Oh god I have an exam on this tomorrow,
@@Adriel_HD Isn't it interesting how 4 years ago you were stressing out about a chemistry test and you took it incredibly seriously, too seriously, yet 4 years later it doesn't matter. The mind makes things to be much more serious than they really are.
Subscribed. Thank you. This helps me with my grade 11 online chemistry course. The online course instructions do not go in nearly as much detail. Continue to put as much detail as possible into the videos.
+Wtfdued Thank you for the great comment, it always a bit of a balance over how much detail to provide but I usually put in a bit more for learning purposes.
Sir, I cannot tell you the depths to which I owe you for these videos. This are getting me through my chem 130 class in college, which is very fast paced with a teacher quite unwilling to help struggling students. I appreciate these more than you know. I have so much gratitude for this.
+Amber Layne Very very nice of you to say such nice things. I always have the feeling that everyone can learn if concepts are broken down in to smaller steps. Thank you. You can see a listing of all my videos at my website,www.stepbystepscience.com
Excellent, this helped my son understand and also see how single replacement reactions work. Thank you for posting.
shit man ur son gotta be independent and look this up himself u know
Brilliant! Your videos have helped me with learn so much about Grade 10 Chemistry. It is a very annoying subject but after watching these videos I kind of like it! I don't know why but it kind of reminds me of Math. Thanks!
Akila Kavisinghe Glad that I was able to make it a little enjoyable for you, try to think of it more like a puzzle and less like chemistry. Thank you very much for commenting.
When I saw the scorched pipette, I just started laughing. Reactions like that are part of the reason Chemistry is just so awesome.
Thanks for the comment, yes chemistry is fun that way.
Great video, very helpful. Loved watching the actual reaction! 🙏🏻 You’re helping me pass a very hard chem class. Thanks so much!
Thank you so much for making these videos. Your approach makes the subjects easily understandable and interesting. I was having a terrible time understanding these until I watched this video. I loved the added bonus of seeing the reactions take place!
Thank you SO MUCH! I'm taking CHM1045 right now and your videos have been a true blessing!
THANK YOU SO MUCH!!!! I've watched all your videos about chemical reactions and My chemistry professor taught all of those for about 30 minutes I guess and I learned nothing. And you you did it for how many minutes only but I understand all of them. THANKS. God bless youuu
+Rachel Ruth Gaña Thank you very much, yes these videos turned out pretty nicely. Glad that you found them helpful. You can see a listing of all my videos at my website, www.stepbystepscience.com
+Brian Swarthout Hi, I do have a question, Why did the Hydrogen have the subscript 2? in Zn + HCl?
+Rachel Ruth Gaña Because hydrogen (H) exits in nature as a diatomic molecule (H2). That is just something you have to know/memorize. …This is also true for Br2, I2, N2, Cl2, H2, O2, F2.
Brian Swarthout
OHHHHH!!! THANKS THANKS so much Sir Brian! BTW are you a professor?
+Rachel Ruth Gaña I am a high school teacher, mostly physics and chemistry and a little math. Currently working in Berlin Germany.
I got homework tonight on this! I was so confused on how to do this or where to start at! Very helpful video!
Thanks and thanks for watching!!!
This subject was kickin my ass. I really couldn’t understand where all these numbers were coming from untill i saw you do the third question. Lightbulb it all clicked.
That's fantastic, thanks for your great comment.
Wow! Thank you! Honestly watching your videos helped me more than my actual chem teacher does! :)
Can't express how grateful I am teachers like you take the time to upload these videos! Truly is great help, especially as a highschool student like myself who's chemistry teacher dropped science in the 10th grade and doesn't know the subject at all.. thank you once again!
+michy moo Thanks for watching and commenting. You can link to all my videos at my website: www.stepbystepscience.com
@Grace 'Zhuoran' Yang Wish i knew lol. She got fired after we teacher evals were happening and someone sat in on our class to see how she taught thankfully.
@Laurevia lo, you can only use the criss cross method for each individual COMPOUND. For example you would use it for AlCl3. Al is +3 and Cl is -1, therefore AlCl3. Copper (Cu) is a metal and therefore an ELEMENT, you do not (actually can not) use the criss cross method for an element, nothing to cross. The formula for a pure metal is just the symbol of the element.
Iam from middle east and iam in love with your channel and i wish i had a teacher like you cause my teacher sucks alot
Sorry about your teacher but thanks for the comment...You can see a listing of al my videos at www.stepbystepscience.com
In the Zn+HCl equation where did the subscript 2 come from on the product side and since Zinc is a Transition metal how do you know it's charge without a Roman numeral in the equation
The 2 came beside the H, because H is a diatomic. Diatomic means that the element cannot be on its on, so instead of just being H, it has to be H2. The roman numerals mean that there is more than one charge, so the number on top of an element with the plus or minus is the charge.
Great thanks for the comment!!!
Great question....Zinc is one of the transition metals that has only one oxidation state (charge) and it is +2, silver is another and it is always +1. There are many others, for example tungsten is almost always +6. Search on the internet for a PT of ions to see others.
Could you please go over how finding the charges work? Like when you were working with Zn + HCl, where'd the H2 come from and how did the charges for a whole compound like ZnCl come to? Thank you.
How can you not have tons of subscribers. Your videos are awesome and the experiments also. Lack of intelligence in this generation!
Jonathan Bautista That is very nice of you to say, tell your friends.
Chem test tomorrow and this helped me understand this stuff 500x easier, thanks you lots!
Hope the chem test went well.
Simply awsome and easy my teacher didn't explain to us easly so I found this really helpful. I told my friend and teacher so my teacher showed this to all classes for science ..helpful for teachers as well
orange12235 That is great, glad you found it helpful and thank you very much for sharing.
Woah!! I didn't realize that chemistry would be so cool! And interesting! Thanks for the video.
But I have a question, would the metals be replaced if on table j it's lower than the other one?
The more active metal (higher on the table) replace the less active metals (lower on the table)
You are welcome, thanks for watching and commenting.
this is so great it makes so much sense when you show the reactions
Thank you! I appreciate your effort :) i watch your videos for my exams and I really learn a lot from you!
@Kristine Salazar Sorry I did not respond earlier, I was I bed with a pretty bad middle ear infection. Thank you for the positive comment.
I wish you were my teacher tomorrow I have a quiz I didn’t understand anything cuz my teacher is very bad so you saved my life in 5 minutes thanks
Good luck on the quiz!
Hunter McCosh Hydrogen (H) naturally occurs as a diatomic molecule…This is also true for Br, I, N, Cl, H, O, F.
+Brian Swarthout The best way my teacher taught me this was HON and the Halogens.
+John Tomoson Our teachers taught us using H,O,F,Br,I,N,Cl (pronounced hoffbrinkle)
Dude your awesome i wish i had you as my teacher. Pls keep making videos!
willis reed Thanks for the great comment, I am making them as fast as I can, mostly physics now, but it is a little hard when you're teaching full time.
You killed me at that intro, reactions in my heart was lit
Thanks
God bless you. You just saved my Chem grade :)
THANK YOU SOOO MUCH!! My chemistry teacher is not very good and this helped me out so much😭💓 never realized how easy it can be! Subscribing because i know im gonna use you in the future!
You are very welcome and thanks for taking the time to comment.
Thank you so much for making these videos!
+Allen Thomas You are very welcome, thanks for commenting.You can link to all my videos at my website: www.stepbystepscience.com
Very nice video I really enjoyed it. They are very clean and well done. Thank you. You just got a subscriber.
@Jesus Hernandez, Thanks for the positive comment and thanks for subscribing.
I am doing my masters but still watch this video's for addition info and they are just fun to watch!
Ranks for the great comment. It is not often that someone says that my videos are fun to watch.
Yes, if the "reactants" were barium and water, this would would be the balance chemical reaction. But I have not tried the reaction so I can not promise you they would actually react, but if they did......
Your videos are very useful and it has helped me improve my chemistry nd the way i looked at it.. Thanks a lot
Your videos are amazing... thank you so very much for taking the time! This is helping me to teach my son 👍😊
I'm so glad the videos are helpful! Thanks for the nice comment.
Make more chemistry videos this is really helping me with my class thank you (:
@2:27 why did H received a 2 after it?
Hydrogen is one of the diatomic gases so it always occurs naturally as a diatomic molecule; the ohters are Br, I, N, Cl, H, O, F. Often remembered through the name Brincl Hof. Does that help?
Thankyou so much i'm new subscriber i love your videos and i really appreciate the experiment you do to show us how it's done not just theory really appreciate that
Thanks for the great comment.
Easy to follow explanation and a great demonstration of the concepts. Thanks.
omg thank you this helped my with my homework sooo much you made it simple
Thanks for demo of live reactions to engage students with completing the equations!
My pleasure! Yes, they are a good visual...and pretty.
This video is very informative and the experiments were very cool!!! Thank you so much
Glad you enjoyed it! Thanks for the comment.
thank you sir this really helped me in my chemistry class, keep on doing videos! :D
This is so helpful. Thank you very much, Sir!
You are very welcome
wow great video! also loved how you incorporated the experiments so we can visualize each reaction. thank you for that!! :)
+janki bane You are very welcome and thanks for commenting.
You can see a listing of all my videos at my website,www.stepbystepscience.com
I loved when you showed the reactions! I learned a lot from this
Thank you for explaining so clearly!!
Thanks, your videos are great tools for homework and reviewing for tests. :)
You sound like Vince Vaughn lol thanks for this! Better than my college professors!!!
Thank you so much! This is exactly what I needed to know. And the experiments were great. Thank you for sharing your knowledge!
You wrote CuCl2 + Al ---> Cu + AlCl3
I thought it would be CuCl2 + Al ---> Cu2 + AlCl3
since it is CuCl2, because of the criss cross method, we know that Cl have a -1 charge and Cu +2 charge?
Thanks a lot
Thank you a million times over
Hello Brian, After you swap the elements into the products side, Why is there a +2 on H, & Br? Where is the two coming from? Shouldn't it be a +1? & the last equations shouldn't the Cu on the products side have a +2 not a +1? I'm little bit confused. Would be great if you let me know.
Thanks a lot.
Moe Giibz Sorry I did not respond earlier it is my son's birthday today. I do not think that I put a +2 on the H and the Br but hydrogen gas and bromine gas always exist in nature as diatomic molecules. So hydrogen gas is H2 and not just H. Does that help?
Yes, the order of the compounds and elements on each side of the equation is not important.
glad it was helpful
Watching this video over and over again before the day of my science provincial...Well i got 92%, thanks man
Great I am glad that it worked out.
You can see a listing of all my videos at my website,www.stepbystepscience.com
Thank you so much! Your videos are so helpful!
i'm confused. With the Magnesium and Silver Nitrate demonstration before it there was a vapor that came up. It wasn't in water, so I don't see how it could be steam. Was there a reaction with the air before the reagents reacted?
hi li I was adding water to the reactant, so some of it was possibly steam, also it is obviously an exothermic reaction. Heat is produced and then you get steam, ash and all that other stuff. Good question.
Extremely helpful! Thank you!
Great channel! Thank you so much! I am taking a chem 100 class this summer semester & I've been cramming and studying a lot better thanks to your videos!
However, I have a question:
In the CL2 + 2NaBr > Br2 + 2NaCl formula I was wondering why you didn't follow the A + Bx > B + Ax format. Is it because the bromine and chlorine are two nonmetals? Is this something I should look for when identifying/ predicting a single replacement reaction?
Thank you for your help!
Stephanie Cole Yes, there are two general types of single replacement reactions; cation and anion. The more common of the two is when a metal replaces a metal. Yes, for the reaction you mentioned it is a non metal replacing a non metal. Good luck this summer, you can find a listing of all of my videos at my website; www.stepbystepscience.com
THIS SAVED MY LIFFFE! THANK YOU!!
Glad to be of help. And thanks for the comment!
You're welcome!😆
Thank you so much, this was very helpful, the demos were cool too :)
thank you so much !!! I just couldnt understand it at all when my science teacher showed us
Pink Skittles just have to explain and take the problems step by step. Thanks for commenting.
Thank you this was so helpful!
Glad to hear that. You're welcome.
Your videos are so helpful.. Thanks for creating it.
Loan Le Great and thanks for commenting!
I don't understand how it was acceptable to modify the subscript of the Cl during the third reaction? I thought it's off limits to mess with the subscripts?
+EagleLogic You may not change the subscripts when you are balancing chemical equations. But you can change the subscripts when determining the products of a chemical reaction. Al has a +3 charge and Cl has a -1 charge, so there for it takes three Cl to satisfy one Al. Cu has a +2 charge therefore it takes only two Cl to satisfy on Cu.
+Brian Swarthout Excellent. Thank you so much for the clarification!
Great job!
Awesome video, but don't you need to check the activity series to see if the reaction will even take place?
Yes you do, only so much you can fit in a 10 minute video.
At 2:14 why is it H2 and not just H? Thanks
+Hunter McCosh this is a little late, but most of the forms of Hydrogen comes in paired form because it is in gas form, another example is oxygen. Because it is in gas form it is expressed as O2 instead of just O
+Derek Tang thanks
+Hunter McCosh Yes! There are a series of elements that do this. They're called diatomic molecules. Theres also a mnemonic that goes with it. They're all H I Br O N Cl F and the mnemonic is just saying "Hi Bronclf"
+Chris Bruning I learned it as the name: BrINCl HOF (pronounced Brinkle Hof)
Naturally hydrogen is never found on its own it has to be two hydrogen atoms because a one hydrogen has one electron which is not balanced so it covalently bonds with another hydrogen to balance out (share two electrons) .
Great video!
Hi! Question, for the second question why is Bromine have a subscript of 2?
Same reason hydrogen gas a subscript of 2 in the first example. They are two of the elements that exist as diatomic gases. The others are Br I N Cl H O F....Think BrINClHOF. Does that help?
dat entry is awesome, nice reaction
so we do switch the charges between the two after the single replacement has occurred?
Hii sir i am indian still i am seeing u r vedio .nice
Thanks!
@@stepbystepscience sir from where u are?
from San Francisco, California, living now in Berlin, Germany
So cool, thx for the help man.
David Williams Anytime, thank you very much for commenting.
how do you know zinc have a positive 2 charge?
Since the transition metals mostly do not follow a pattern, you look it up on the Internet or some PT have the common ionic charges on them
Im confused about when to put parentheses, and when not to. And also, do the numbers of each element have to be even on both sides? In each compound? Please get back to me, i have a chemistry test tomorrow and im confused.
To be balanced the total umber of each element must be the same on each side. Parentheses are generally used with polyatomic ions. For example Ca(OH)2 means that there 1 Ca atoms and 2 OH polyatomic ions.
Sweet thanks :D
How do we know if there will be a reaction based on how easily the element is oxidized?
Thanks for the video. Very helpful :)
If I get your question correctly......Ba + H2SO3 = BaSO3 + H2
hemistry/Qn--- 1.A solution of copper sulphate was kept in an iron pot.After a few days the iron pot was found to have a number of holes in it. Explain
+JAMES VARKEY Interesting question! Let me know when you get the answer.
You can see a listing of all my videos at my website, www.stepbystepscience.com
Thanks for the lifesaver!
You're welcome!
2:28 does it matter what way the equation is written? could it also have been written "zncl2 +h2 " ..
I dont get it, in the question i was doing it was
Cl2+CsBr -> ?
I though it should be Cl2+CsBr ->ClBr+Cs
but when I looked at the answers it said Cl2+CsBr ->CsCl+Br2
Chlorine is a non-metal but Cesium is a metal, I still dont get how to do it, my teacher just explained inly half of it and now im stranded with homework. Plz help
The Cl and the Br are both the non-metals and they switch places in a single replacement reaction. Like replaces like....
is there a chance that there will be no reaction, my teacher discussed that by our forgot it already, can you help me there with the activity series?
Yes according to the activity series there is a chance there will be no reaction. More active metals replace less active metals. Try this website
antoine.frostburg.edu/chem/senese/101/redox/faq/activity-series.shtml
Wow this helped so much, thank you
You are very welcome, thank you very much for watching and commenting.
Thank you!
you're my hero!!!!!
I have a problem with a single replacement reaction problem. I have barium plus sulfurous acid. On my reactivity list, barium is not on their. Can anyone help me react this?
How do you decide what metal is alone when there are two metals?
Be nice, some are better then others.
Good video, it helped me a lot.
CoffeeGamerMan Great, thank you for commenting.
Hi, I've watched a couple of your videos and I'm trying to study for my chemical reactions test. I've noticed every time you bring over certain elements like oxygen and hydrogen to the product side they have a subscript of 2. do you do this with all of the seven diatomic ions?
Yes, You can a listing of all my videos from my website, www.stepbystepscience.com
This was so helpful! Thank you!
+Tiffany Great, thanks for the comment. You can see a listing of all my videos at my website, www.stepbystepscience.com
How does this work with reactivity series
More reactive elements replace less reactive elements.
Hydrogen is a diatomic gas so in nature conditions it always exists as H2. This is also true for Nitrogen (N2), Oxygen (O2), Iodine (I2) and maybe a couple others. Don't have the list right in front of me.