- Видео 13
- Просмотров 488 194
YouChemTutorials
Добавлен 25 сен 2011
Need help in chemistry? This channel gives you tutorials on those subjects and problems that most general chemistry students find challenging. I demonstrate how to solve the problem and break things down to give you some help.
Using Bond Energies to Calculate Heats(Enthalpy) of Reactions
This tutorial describes how to calculate the heat of a reaction involving covalent compounds using bond energies.
Просмотров: 98 823
Видео
Drawing Resonance Structures
Просмотров 80 тыс.12 лет назад
This video gives the rules for drawing resonance structures and some examples to get you started on this topic.
Lewis Dots Part 2
Просмотров 84712 лет назад
This video describes the basic rules for drawing Lewis dot structures with examples.
Lewis Dots Part1
Просмотров 98412 лет назад
This video gives the basics of drawing Lewis dot structures using the diatomic elements as an example.
Chemical Naming of Acids
Просмотров 6 тыс.12 лет назад
This video helps with the naming of acids. It will show you how to write the names of acids given their formulas and the formulas given the name.
Chemical Naming: Covalent Compounds
Просмотров 9 тыс.12 лет назад
This video helps you name covalent compounds by giving examples of writing names from formulas and formulas from names.
Chemical Naming Types of Compounds
Просмотров 18 тыс.12 лет назад
This video helps you name compounds by teaching how to identify the three types of compounds. You will use this to choose which naming rules to use.
Chemical Naming Ionic Compounds
Просмотров 2,6 тыс.12 лет назад
This tutorial teaches how to name and build formulas for all types of ionic compounds.
Calculating Average Atomic Mass
Просмотров 210 тыс.12 лет назад
This video demonstrates how to calculate the average atomic mass (also called the relative atomic mass) for an element. It also demonstrates how to determine the most abundant isotope of an element.
Isotopes versus Ions
Просмотров 7 тыс.12 лет назад
This video explains the differences between ions and isotopes and shows you how to find the number of subatomic particles in each species from their symbols.
Atomic Symbols
Просмотров 54 тыс.12 лет назад
This video describes how to get the number of protons, neutrons and electrons from an atomic symbol.
How did she get the mass?
Awsome man!
me seeing that this saved people even 10 years ago😳
i dont get it there is no explanation on how to find the abundance
Thank you so much for the video, it was very helpful.
You told neuneutrons
Hi
10 years ago, and still helping me out, thank you!
Best explaination on youtube
thanks a lot. ^.^
Thank you for this! Very helpful :)
I’m so confused 😐 I very much dis like chem
pffffftttttt you just wasted so much time. You titled it NAMING instead of identifying. Bruhh
Plutonium is not 84
dont care
Hi from luxemburg our teacher give us homework with this Video for explaining -____-
-4788 should be the correct answer for the last problem. I'm appreciative though.
I have a question. So basically what you while you use bond energy method, you do this ; Reactants - products, isn't it? So why you have written down products-reactants as another method. It is really confused me. Sorry if i have grammer mistakes or spellin mistakes that i might have
Why Not 10 Minutes long
Jeremy cv
Good job
I thought resonance structures were also supposed to have the same number of lone pairs. Is that right ? If so, the first structure is not a resonance structure.
Sergio Abreu Dias
LELLLLLLL
Fuck you
Fuck you nigga
@@vzmt9319 viktor
Fuck you 5G12
Life Saver thankies forever dude!
thehumeinbrein hey I say that too
Plz upload shortcut trick for organic reaction
UwU
Awesome sir
24.30 not 24.31
marlyn pablo its .31 the round off rules waa add 1 if the next decimal num is 5 or higher
Chester C thank u.😚
you're amazing !! You've helped so much
Thanku so much
Thank you so much this helped me a lot
This Tyler Oakley? 😂
Thank for given that's vidio
Wow! great video!
Awesome Chem
Shit, I'm triggered after watching this video.
thanks 4 help us
thank you
Great explanations.. Understand perfectly.. Woo - huu
Hmmm🙊 I ci u r a fan of online videos too...thought I was da only one
+Laudika Johannes yeah I like them as they help in situations where teachers aren't available to explain again...
so many protons and neutrons and electrons and protons and electrons and protons... I'm still like "what"??? anyways.. nice video, just not for me.
Very helpful!
Great video to review with none the less. Thank you.
Correction to video: in C6H6 + O2 -----> CO2 + H2O the correct way to balance the equation is 2 C6H6 + 15 O2 -----> 12CO2 + 6H2O
I thought the correct way was C6H6 + 7.5 O2 ---> 6 CO2 + 3 H2O
when i typed the numbers into a cal i got for the first one 1,894.576269 the deciaml point is different to yours ?
Make sure you always balance your equations. I just took a quiz and forgot to...
In the second example is the reason you didn't do the 3(c-H) and c-cl bonds on the reactant side is because on the product side there's also 3(c-H) and c-cl bonds?
yayyy i done it this was so helpful thank you great work! x
Honestly thank you. I've been so heap deep in AP CHEM and I've been lost. I've seen millions of vids which have the structures drawn with hexagonal shapes & I know what they mean but if someone is learning it should be written out, which your did. THANK YOU!!!!!!!!