In this video you will learn 1000 English questions and answers for beginners to speak English fluently. Every question and answer is provided with pronunciation. This video represents American English.

If you are having trouble with the Reduction Mechanism of NaBH4 (Sodium Borohydride) or LiAlH4 (Lithium Aluminium Hydride) this is the perfect video lesson for you! (Note there is a little correction, please check below for it. My LiAlH4 Mechanism for the reduction of the carboxylic acid needs to be edited. Sorry!)

Got a final or MCATs coming up? Test your skills when it comes to reducing agents in this video!

Sorry about being a little M.I.A. lately but you guys get an extra long video in compensation :]. It's actually my longest video thus far. I'm usually a bit OCD about long videos but I made sure I packed in some fun and change in scenery here and there to keep you guys awake. Also part of the reason why it's so long is that I combined the "bloopers and outtakes" with this video and they are in the end for any one not taking Orgo anymore and just want to see some fun parts. :]

●LiAlH4 Reaction Map: http://upload.wikimedia.org/wikipedia...
●Correction!
Special thanks to Bhaveya Saraogi who pointed it out to me. But my LiAlH4 Reduction Mechanism for the Carboxylic Acid needs to be tweaked a little. I double checked some resources and I must have gotten the mechanism for LiAlH4 reduction of esters and carboxylic acids mixed up. So everything is correct in this video except for the the first and second step of my LiAlH4 Reduction of the Carboxylic Acid. And the mechanism I show for the Carboxylic Acid would apply if you were reducing an Ester down to an alcohol. Sorry again for any confusion!

The correct mechanism is here if you'd like to check: http://chemwiki.ucdavis.edu/Organic_C....

●Why is LiAlH4 Stronger at Reducing than NaBH4? - http://youtu.be/oJyVWsygzEc
●Reduction of Ketones and Aldehdyes Made Easy! - https://www.youtube.com/watch?v=xBdyV...

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● 7 Must Know Resources for Organic Chemistry! (Welcome Part 2) - (https://youtu.be/1QkGxQCI1es)
http://OrgoMadeEasy.org/extra-resources/

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●Private Tutoring Information:
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Make sure you share this with your friends if you found it helpful, and I would love it if you leave some comments to let me know if I'm on the right track ;).

يتحدث الدرس عن المخاطر التى تهدد امن البيانات و المعلومات
الفرق بين البيانات و المعلومات : البيانات هو شئ ليس له معنى مثل رقم 26 او اسم محمد او عنوان شارع السلام اما المعلومات فهى عبارة عن البيانات بعد معالجتها من خلال الكمبوتير
مثال : محمد عبد الرحمن سنه 26 سنة و يسكن فى شارع السلام .. فهنا تم تحويل البيانات إلى معلومة مفيدة بعد معالجتها
و إذا لاحظت انك عندما يطلب منك فى مكان ما ان تملئ فورم معينه ، فإنه يطلب منك ان تملئ بياناتك و ليس معلوماتك
فإستخدام الكمبيوتر تبدأ بعملية ادخال البيانات للكمبيوتر حتى يقوم بمعالجتها لإستخراج المعلومات

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In the fall of 2011 Peter Norvig taught a class with Sebastian Thrun on artificial intelligence at Stanford attended by 175 students in situ -- and over 100,000 via an interactive webcast. He shares what he learned about teaching to a global classroom.

This article includes the URL and description of 100 free web tools that can be used by all teachers. The tools are categorized into search engines, math and science, games, templates and lesson plans, and more.

Here at Andrews Air Conditioning, we know a thing or two about optimum temperatures. Whether it is an agricultural, retail, office or other type of environment, we will provide the ideal temperature to suit the setting. Our ’Ultimate Thermometer’ summarises 100 temperatures you should know. From South America’s coldest temperature to the smoking point of virgin olive oil. Learn some remarkable facts from 5500bn°C through to -273.15°C!

Ex-Googler Sarah Cooper comes back to the NYC office to discuss her latest book 100 Tricks to Appear Smart in Meetings. "Sly satire that will bring endless joy to anyone who has ever endured the drudgery of corporate life."―Dan Lyons, writer for HBO's Silicon Valley and New York Times-bestselling author of Disrupted Funny because it's true. From the creator of the viral sensation "10 Tricks to Appear Smart in Meetings" (5+ million views and hundreds of thousands of shares) comes the must-have book you never knew you needed, 100 Tricks to Appear Smart in Meetings. In it, you will learn how to appear smart in less than half the time it takes to actually learn anything.

كتاب مفيد جدا لكل معلم ومعلمة ومدرب ومدربة, يقدم الاستراتيجية مع شرحها وكيفية تطبيقها في الدرس.

Subject: Chemistry
Paper: Organic Spectroscopy
Module: UV-Visible Spectroscopy and Instrumentation Technique
Content Writer:

تجارب علمية بسيطة عن المغناطيس و يوضح السبب في جعل مادة ما تتحول من مادة عديمة التأثر بالجذب المغناطيسي الى مادة فعالة وقابلة للتأثر

his video features 10 experiments with water as one of the ingredients.

Experiments:
1. Color Chromatography
2. Walking Water
3. Atmospheric Pressure
4. Layered Liquids
5. Optical Inversion
6. Polarity of Water
7. Ideal Gas Law
8. Electrolysis
9. Diffusion
10. Elephant Toothpaste

Music:

Antarctica by Audionautix is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
Artist: http://audionautix.com/

Believer by Silent Partner
YouTube Audio Library

If you work in an English-speaking environment, you might hear these common phrasal verbs used in business situations!

draw up
get ahead
burn out
not measure up
zero in on
lay off
pencil in
close down
run by/past
sign off on

How do you know if your child has autism? Hopefully this video will shed some light on that discussion. Also, please read the disclaimer at the end of the video for more context

I’ve made sure that most of these experiments are very easy and include household items. There is one, however, that requires buying things not found in typical homes. Read full article here....http://www.raisingdv.com/easy-science...