In this free video chemistry lesson from Salman Khan, we learn about amines and SN2 reactions. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn how to work with aldol reactions. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to undertstand the effects of solvents on SN1 and SN2 reactions. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
This free video science lesson from Internet pedagogical superstar Salman Khan presents a general introduction to the concept of reaction mechanisms in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to understand and work with SN2 reactions in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to handle SN2 substitution reactions in stereochemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to handle SN1 reactions in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to handle reaction mechanisms in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to use Markovnikov's rule to figure out which addition reaction is most likely in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
Crochet an alt turning chain for half double crochet Double crochet leaves a hole in the fabric. The special stitch makes the fabric more dense. You will have to go back and double crochet.
This First Aid how-to video show you how to use an EpiPen in the event you or someone you know should experience an anaphylactic allergic reaction. Learn to save someone's life by learning to use an EpiPen properly.
Once used as solid rocket fuel because the reaction requires no oxygen, sulfur and zinc react vigorously. The reaction with zinc produces flame and a near explosion. Sparks fly and smoke billows in this dramatic chemical demonstration.
This illustrates the reaction had between magnesium and dry ice. It ignites in a chemical reaction between the CO2 & the magnesium.
In this video, we learn how to crochet a beanie hat as a beginner. Start out with a slipknot then chain 50 chains. For row 1, you will single crochet in the second chain from the hook. Then, chain one and skin the next chain. Repeat this 24 times total. After this, single crochet in the 2nd chain from the hook and then chain one and skip the next chain. Continue this until you reach all the way around and make a beanie that is your desired size. Bind the knot off at the end, then you can wear...
Want to learn how to play Alice in Chains on the guitar? With this tutorial you can learn how to play "Nutshell" by Alice in Chains on the acoustic guitar. This version is a simplified version of the song and is not exactly how Alice in Chains play it. This lesson is geared towards intermediate guitarists because it assumes prior knowledge of guitar playing. Watch this how to video and you will be able to sing and play along to "Nutshell" by Alice in Chains.
There are many different things you can make out of duct tape. Take key chain dangles and lanyards for example- with the proper tape colors, you can craft highly stylized and cool looking duct tape creations that are an awesome fit for your keys or as a lanyard to carry various badges or objects.
This video presents an overview of how to do a loopy fringe when crocheting. It's easy; all you'll need are loops of twelve chain stiches and then single crochet. For a complete overview, and to get started incorporating loopy fringes into your own garments, watch this video tutorial.
In this tutorial, we learn how to crochet a left handed air freshener angel cover. Start out with a chain one, then pull the loop up. After this, work 16 half double crochet through the loop and then join with the beginning half double crochet. Next, do a chain one and pull the loop up. Work in two half double crochets in each stitch around, then join with the first half double crochet. Next, chain one and single crochet in the same stitch. Then, single crochet in the next stitch and continue...
Jump rings are super functional in jewelry making, allowing crafters to connecting disparate sections of a necklace easily and also serving as their own minimalist decor. If you're into the look of chain mail (which is just that - lots of chains connected together via jump rings), then you should check out this video to learn how to craft your own jump rings.
If your mountain bike chain keeps falling off, there may be numerous problems that are going on. In this next video tutorial, you'll find out one solution for making sure that your gears are fine tuned and that your chain won't keep falling off. It's not too hard to perform and makes your bike ride more enjoyable. Good luck and enjoy!
In this video, we learn how to crochet a left handed dainty angel. Use a size H 5mm crochet hook. Add a slipknot to the crochet hook, then chain three, join, and chain one. After this, work 6 single crochet through the center of the chain three. Next, join two single crochet for each stitch around for a total of 12.Now do 12 more single crochets and work an additional round with the single crochet. Continue this process until you finish, then create the dress by doing the same type of crochet...
Learn how to save hours of render time with by chain rendering in Adobe After Effects CS4 or CS5. Whether you're new to Adobe's popular vector editor or a seasoned graphic arts professional just looking to better acquaint yourself with the program and its various features and filters, you're sure to be well served by this video tutorial. For more information, including detailed, step-by-step instructions, watch this free video guide.
Ever gotten frustrated when, as you're blowdrying your hair, you notice that somehow the blowdryer's cord has been twisted this way and that, to the point that it's entirely curled up into little loops?
In this video tutorial, viewers learn how to make a Christmas countdown chain. The materials required for this craft are: construction paper, paper cut into small circles, glue and marker (optional). Begin by cutting the green and red construction paper into even strips. Users may choose to write out the numbers or print them out onto paper. Then cut out the numbers into small circles and glue them in the middle of the strips. Alternate the color of the strips each day. Then put the edges of ...
You want to start by determining what kind of charms and the size of the necklace. Most necklaces are about 16-20". If you wanted to make a choker or a bracelet, then measure out a smaller piece of cable chain. Using a ruler makes it easy to measure and later on to add the charms evenly. Using chain nose pliers and side cutters, you want to cut a jump ring and attach to the trigger clasp and then close the end with the pliers. Take the chain and center it on a ruler, find the middle and that'...
For anyone interested in learning a new jewelry technique, this video tutorial shows how to crochet a bead rope necklace. You can use large pony beads like the video tutorial, or use much smaller beads. The pony beads are suggested for beginners so that you can see what you are doing. To begin, thread all of the beads you will use onto your yarn. You can alternate colors or place them onto the string at random. Both techniques will yield two different effects. Begin with six chains slip stitc...
Materials Needed: - Use a Size K Crochet Hook - 2 strands of 4 Ply Yarn Round 1: Start with the Chain 4, then join and wrap. Pull a loop up. Work 12-Full Size Half Double loops through the loop. Then join in the beginning Half Double crochet. Round 2: Start with a chain (1 loop). then work 2-Half Double crochets, in each stitch around for a total of 24-Half Double crochet on round 2. At end of round 2 join in beginning Half Double crochet. Round 3: Start with a chain (1 loop). Do 1-Half Doubl...
A chain sinnet is a useful rope technique to know for climbing, camping or disaster prep. It's a bit tricky for beginners, but you should pick it up before long. In this tutorial, the guys at ITS Tactical show us how to make a chain sinnet using some flaked rope.
If you've seen the movie "28 Days" starring Sandra Bullock and Viggo Mortensen, then you probably remember the Starburst necklace, right?
Gemstone necklaces are quick to make at home, not to mention cheaper and more customized. To make a gemstone round bezel necklace, you'll need a round bezel finding, a gemstone to match the finding, a jewelry chain, and bent chain nose pliers. Learn how to make a gemstone round bezel necklace by watching this video jewelry-making tutorial.
Watch to learn how to finish a beading chain, which has a very small diameter, using a crimp tube instead of a jump ring.
Use the crossover technique to learn how to make this loopy chain bracelet.
What can you do with a simple chain? Check it out!
You asked for it, you've got it... Bike maintenance videos. This week we discuss and show chain cleaning and lubrication. Please thank Doug Moak and our sponsor, River City Bicycles, for making it possible.
In this video tutorial the instructor talks about Hydrochloric acid (HCL) and how it reacts to a few metals. To try this out take 30 ml of concentrated hydrochloric acid in a beaker. You need to employ caution while handling acids, especially if you use strong ones. Now you can throw small pieces of different metals into it carefully to see how it reacts with different metals. For instance when this HCL comes in contact with metals various reaction take place depending up on the metal. Like i...
A new study has found that up to half of people who think they have a penicillin "allergy" can still receive the drug, and other antibiotics with similar structures, without any negative reactions to the meds. Why? Because they're not really allergic, doctors say.
How to Make a Macrame Petal Chain Necklace with Beads.
Once you've reached an age where sparklers are no longer fun, it's time to upgrade to science and steel wool. It may be basic chemistry, but as you'll see in the video, simplicity can amaze more than complexity, as well as create some really impressive fireworks that are perfect for the Fourth of July.
Have a lot of left over rope that you don't need? Looking for an easier way to store your extension cables and the like without getting them all tangled up? Then learn how to make a sailor's chain! This great video shows you the basic steps that you'll take to creating an endless set of slip knots that'll keep your wires, cables and ropes all tidy without.
In this motorcycle maintenance tutorial you will learn how to adjust the chain on a Honda 919/Hornet 900 bike. If your chain needs adjusting, watch this video and see how to do it yourself.
