Net Ionic Equations Practice and Answers

To be successful writing net ionic equations you need lots of practice. In this video you’ll be given five practice net ionic equations. Try to balance each equation and then check your work. Each problem highlights a core concept in understanding net ionic equations and they get more challenging as you go.
Molecular, Complete, and Total Ionic Equations (0:29)
How to Find Ionic Charge (3:40)
Determining Solubility (7:22)
Weak Acids and Bases (11:00)
Recap (14:15)
Writing and balancing net ionic equations can be challenging but if you carefully follow the correct steps you will be successful.
The general steps for writing net ionic equations are:
1. Write the balanced molecular equation.
2. Write the state (s, l, g, aq) for each substance.
3. Split strong electrolytes into ions (the complete ionic equation).
4. Cross out the spectator ions on both sides of complete ionic equation.
5. Write the remaining substances as the net ionic equation.
Molecular Equation: The equation we are given without anything broken apart into ions.
Total or Complete: all strong electrolytes are broken apart into ions. We don’t break apart solids, liquids, gases, or weak electrolyte.
Net Ionic: What is left after we cancel out the ions that appear on both sides of the Complete Ionic Equation. These are called Spectator Ions.
Note that not all equations are net ionic equations. For example, H2 + O2 = H2O is not a net ionic equation. The H2 and O2 are gases and don’t split apart into ions. Water is a liquid that stays bonded and doesn’t dissociate into ions (actually it does a little bit, and this is important, but not something we consider in writing and balancing net ionic equations).

[@AcetylCoA29]

You're so helpful! My homework videos are literally 5 minutes and then four pages of 'practice' problems, but they explain a fraction of what I need to know to do the work. Thank you, God bless

[@Captain_Lani]

Thank you so much Dr B for such a helpful resource! You are (slowly) helping decifer what at first seemed like many impossible concepts for me to understand. You are my go to guy for Chem now and I learn way more off you than my lecturers. Thank you for breaking it down so clearly, it has been invaluable - I will be watching the ads, hoping your are making some money from YT, you derserve to! Thanks again!

[@wbreslyn]

Although your comment is from five months ago I did want to thank you for the kind words. They are most appreciated!

[@shrutikasawant3865]

Thank you Dr.B, never could I have thought that chemistry would feel so easy. ps[This is my first comment on YT only because I was impressed with your way of teaching]

[@sophiastoller9889]

im sort of confused on how to determine what is a solid, liquid, gas, or aqueous?

[@ha-nh2uf]

use the solubility table! he explained this in another video named “how to identify spectator ions” :)

[@shudhanshubhushan7387]

Sir you are amazingly amazing!!, Thank u so much Respect from India

[@jeisongarrido7376]

Thank you so much for these videos, I learned a lot!

[@wbreslyn]

Great to hear!

[@lightcapmath2777]

Excellent excellent excellent...Thank you as always Dr. B.. DVD:)

[@wbreslyn]

You're very welcome, David! I actually just did a livestream on Net Ionics this evening. Here's the PDF I created just this week on NI. Let me know if you see any errors! breslyn.org/chemistry/ChemGuides/Net-Ionic-Equations-v3.pdf

[@lightcapmath2777]

@@wbreslyn Morning Wayne. Thank you for the attachment. will share this with my students. Peace David

[@wbreslyn]

@@lightcapmath2777Good morning, David! Let me know if you see anything that needs fixed (even small errors)!

[@lightcapmath2777]

@@wbreslyn will do...need time to look at / work out all that PDF file you shared. I did have another question. Did you ever do a video on how to write a lab report? I know each school / lab/ teacher has their own requests...but can you offer a outline on writing a lab report? Peace to you Appa and Mono. DVD:)

[@wbreslyn]

@@lightcapmath2777 I've not done a lab report video yet. You're right, every teacher has some variation! This is sort of a generic STEM outline that seems reasonable: guides.libraries.indiana.edu/c.php?g=992698&p=7182653 Right now I'm fighting through creating a guide for redox reactions (balancing and terms). It's actually very challenging and it seems like most resources do an example and say "that's how you do it". Once I'm further along I'll share it with you! Yes, and greetings to Ginger and Oreo.

[@krishnaswamy6684]

You are an awesome teacher 🏆 I wonder how you write like that smoothly👌

[@wbreslyn]

Lots of practice and some creative editing! I'm using InkScape (www.Inkscape.org) which is free.

[@CashDavid-x4r]

Like the way you teach sir ❤❤

[@fasternsama4885]

Am truly grateful and humbled by your work and I will pray that God blesses you with many more years so that you can continue to help us who truly need you

[@wbreslyn]

Thanks for the kind words!

[@muhammadsadamkhan3238]

I hardly subscribe any KZbin channel but I subscribed yours. Excellent job man

[@wbreslyn]

Great to hear!

[@billyfitzgerald7586]

Thank you so much… very easy to understand

[@javaughniejones3441]

I don't see any of the links; to the playlist with more examples.

[@angelinoz5159]

Thank you for your gift of knowledge. I would like to ask you this that what if one of the reactants is insoluble like copper II carbonate reacts with HCl. Should we then consider CuCO3 as solid reactant? Then the overall equation would include CuCO3 on the reactant side. Please explain this.

[@wbreslyn]

I'd consider an insoluble compound to be a solid (s). I think that CuCO3 might react with water. en.wikipedia.org/wiki/Copper(II)_carbonate But my solubility table says it is insoluble. I'd say with HCl consider it a solid.

[@krishnaswamy6684]

You are an awesome teacher 🏆🥇🙏

[@wbreslyn]

Thank you! 😃

[@mudking1249]

tysm you explained it better then my sir

[@anistynhoney4795]

Thank you! I finally understand how to do these

[@wbreslyn]

Excellent!

[@flywy4461]

We know that group one elements are soluble in water, what if i us magnesium carbonate instead of sodium carbonate? Would it still be the same? I know mgco3 isn't soluble in water. In the end, what's the ionic equation?

[@saraatef5841]

Thanks for this amazing explanation ❤️❤️🌸

[@wbreslyn]

My pleasure 😊

[@AJNH_31]

If It's CO2 and CO3 how is it balanced? confused on that point

[@lexcage6941]

Thanks bro

[@monicavel3136]

do you by any chance have a document of main slides with diagrams?

[@yusufabdalla1106]

Thank you so much dude

[@assassinoplayz3485]

sir but how will we know that which product or reactant is solid,liquid and gas

[@RefanAmeen]

I think u memorize them

[@parrotboy7408]

Thanks a ton sir

[@wbreslyn]

No problem!

[@gloriouspurpose3139]

Great job♥️♥️

[@dillonhollin8630]

wait why did you not break apart the aqueous solution of CO3? I wrote mine like this: C(aq)+3O(aq)

[@wbreslyn]

You shouldn't break apart polyatomic ions ... Memorizing Polyatomic Ions: kzbin.info/www/bejne/rJbTqZuDlMeNp80

[@frostbeard9542]

Why did Mg and H2 not get a charge?

[@sk-yt2ch]

Because we only break those with aqueous state (aq), H2 in the gas state, and Mg in the solid-state

[@engysamad1]

u r amazing

[@wbreslyn]

Thank you so much 😀

[@amnakhadem1645]

i want the work sheet

[@aoi_lycheeee9397]

Thank you so much!! I finally understand this (๑˃̵ᴗ˂̵)👍

[@wbreslyn]

You are welcome!