In this video, we learn how to balance a chemical equation. First, take a look at both sides of the equation and figure out how many atoms there are for both. Once you write this out, you will have an idea of how unbalanced it is. Now that you've done this, you need to think about how you can make the equation equal. Look at the first line and then see how many you have to add to one side to make both equal to each other. Then, go to the second line and do the same. When finished, you will ha...
Weeping willows, globe willows, corkscrew willow, cotton wood are all prone to bores than other diseases. They grow in fertile soil with lots of moisture. Never treat tree chemical. Prune as necessary, take out dead diseased limbs, water and fertilize regular. This ensures the tree lasts longer and that the tree is less attractive to insects. Where tomatoes are concerned to avoid sunburn ensure that they are slightly covered with the folding of the plant. High salt level of water or chemicals...
Find out how everything in a chemistry lab works, from pipettes to burners to recrystallization to storage. You'll get precise instructions on how to work and perform certain scientific duties in the chem lab, whether it's chemical or just ordinary high school science.
Here's a really good fast easy way to clean your microwave with a bowl of hot water. GREAT TIP! No harsh cleaning chemicals.
In this guide, you'll learn how to make your own boric acid from borax and other common chemicals to produce a green flame when mixed with methanol.
Hello! Today I would like to share the process of making your own natural marigold cream. The product does not contain any (artificial) chemical elements and therefore can be called natural. Step 1: Ingredients
In this video, we learn how to follow three rules to balance chemical equations. The first rule is that you need to start by balancing elements that appear in only one reactant and one product. The second rule is that you need to multiply through by common factors. You must retain equal numbers of atoms of each element on both sides of the equation. The third rule is: if an atom appear in elemental form on one side of the equation, save it for last. Going over the rules of how the balance the...
This video tutorial is in the Education category which will show you how to understand chemistry and chemical change. The question here is 10g of Mg ribbon reacts with 0.15 mol decimeter cubed of hydrochloric acid at 25 degree Celsius. What is the balanced equation for this reaction? When magnesium reacts with hydrochloric acid, you will get magnesium chloride and hydrogen. So, the equation will be Mg + 2HCl = MgCl2 + H2. Mg is in group 2 of periodic table and has a valance of 2, whereas Cl i...
You've worked hard to get your garden in shape— the tilling, the planting, the watering, so when pests and weeds threaten your garden, you'll want to take action. But if you don't want to use chemicals, there are effective organic alternatives. Lowe's has the advice you need for keeping those unwanted enemies out.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to work with stereoisomers, enantiomers, diastereomers, constitutional isomers and meso compounds 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 determine the empircal and molecular formulas of a substance given percent composition. 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 video, we learn how to play "I Don't Love You" by My Chemical Romance. The basic chords of this song are: C, C suspended, C7, A minor, G suspended, and many others. Once you learn how to do the basic chords in each of the different verses of the song, you will be able to star to play in one fluid song. The fret of the song is tricky to play, so this may take some getting used to. Once you have these figured out, start to add in the lyrics as you go between the different verses. When f...
In this how to video, you will learn about Chemiluminescence and the oxidation of Luminol. The first solution is Luminol and NaOH. The second is K3 and H202. Luminol is used to detect blood in crime scenes. It reacts with Iron in Hemoglobin. As you can see in the example, it illuminates the chemicals in the dark. This is why it is very useful for crime scenes. It can be used even if the blood is not visible with day light. Thus, it is an invaluable chemical in the name of science and justice....
Don't call a pricey plumber! Anyone with a few tools can unclog a drain -- without even resorting to those strong, toxic chemicals. Most of the time, anyway. You will need baking soda, vinegar, rubber gloves, cleaning rags or duct tape, a rubber plunger, a plumber's snake, petroleum jelly, a bucket or pan, and a length of hose. WARNING: Do not try this if you have already used a commercial drain opener, as it can create harmful fumes.
Have a Playstation game, or any other disc, that just won't play? In this how-to video, you'll learn how to repair damaged and scratched optical media (e.g., DVDs & CDs) using sandpaper and rubbing compound. Check it out.
This instructional painting video demonstrates how to prep and paint a room. First, go through the room and spackle any holes or dents in the wall. Sand it down after the joint compound dries. Paint the ceilings first. Follow these step by step instructions to paint a room; trim, window sills and all.
Take a look at how to successfully repair a hole in a drywall. This video how to video demonstrates how to use a utility knife and a drywall compound to seal it all up. You wont have to call a repair guy to patch any holes in your walls.
This is a tutorial video about compound circles (aka flowers) and freedom of expression. Hopefully you'll get some great tips on new ways to move your arms in conjunction with your poi. There is a quirky intro you may want to skip to get right to the instructional.
Here's a cool video! By combining two readily accessible liquids, you can make yourself a cool bouncey ball. This how-teaches kids about polymers, chemicals. You'll also learn in this video how to make glow in the dark goo. Just what the world needs!
Nitrogen Triiodide is a very powerful contact explosive, but like most fun chemicals is not readily available to the general public cheaply. If you want some and have some chemistry skills, watch this video to learn how to make Nitrogen Triiodide at home out of household ammonia and water purification iodine crystals.
Cockroaches are one of the most durable and and irritating forms of life on Earth. Many turn to toxic chemicals to get rid of them, but that's not very green is it? This video will give you some eco-friendly tips for preventing infestations, trapping insects, and disposing of them once you've caught them. Yes, cockroaches are part of nature. No, that doesn't mean we're not going to kill them.
Learn how to rid your backyard of annoying bugs without exposing your family to chemicals and toxins.
In this video, Bre Pettis from MAKE magazine will show you how to make a tabletop biosphere. You need a jar, aquatic plants, shrimp, amphipods, dechlorination chemicals, and chicled salt.
Keeping apples or avocados from browning after being cut is impossible; within minutes of being exposed to air, these fruits (yes, avocado is a fruit) begin to brown. No matter what you try—adding lemon juice, keeping the pits in place, immediately sealing the produce in an airtight bag—brown discoloration always occurs. However, air is not the only reason that foods like apples, avocados, and lettuce brown: it's also due to the knife you're using.
This is a video tutorial in the Education category where you are going to learn how to use and understand chemical equilibrium in Chemistry. This video answers a question about the contact process. This is a process by which sulphuric acid is made where they take sulphur, react it with oxygen to make sulphur dioxide and react it with more oxygen to make sulphur trioxide. The equation here is 2SO2 + O2 will give us 2SO3. This reaction is exothermic, that means it will give out energy in the fo...
If you use Windex or any other window cleaning product, you may be exposing yourself, or others, to harmful chemicals. Many cleaning products that are sold in supermarkets, contain harmful chemicals that are not good and certainly not good for the environment.
You may or may not know, but much of the cleaning products that are used today can be harmful to you, kids, or even pets. They contain a great assortment of chemicals that can cause serious illness or death. So why risk buying thse products when you can make them yourself?
In order to make fake blood, for special effects or for Halloween, you will need the following: Potassium Thiocyanate (KSCN), Iron (III) Chloride (FeCL3), which is also known as ferric chloride or may substitute Iron Nitrate (Ferric Nitrate). You will also need water or dihydrogen monoxide.
In this video from nmsuaces we get a lesson in how to dispose of leftover lawn chemicals. Many gardeners want to know what to do with leftover materials and how to get rid of it safely. You should not store it. Once mixed up, use it all. Make your mix so you don't have to have a surplus that day. If you have a surplus, you need to spray it in an area that is labeled to be used. After you are finished rinse the container at least 3 rinses. The rinse water must then be sprayed out in the area w...
Watch this science video tutorial from Nurd Rage on how to make a chemiluminescent reaction with home chemicals. Make a chemiluminescent singlet oxygen red light pulse from two simple chemicals almost anyone can buy: pool chlorine and hydrogen peroxide.
Would you know what to do if someone ingested poison? Equally important, would you know what not to do?
Natural remedies used through the ages abound, especially in Asian medicine. The willow-leaved justicia plant, found throughout Southeast Asia, has traditionally been used to treat arthritis, but scientists have just discovered it contains an anti-HIVcompound more potent than AZT. AZT was the first drug approved to treat HIV, and is still used in HIV combination therapy today.
Zika is a threat to unborn babies — the virus can cause neurological damage if it infects a mother during pregnancy. But as with many things, our solutions to the problem aren't always all that much better than the problem itself.
Glow sticks, a popular favor at parties and outdoor events, and a must-have on Halloween, can be traced back to the United States Navy in the mid-1960s. The military desired improved visibility during night operations, and glow sticks, with their small-size portability and lack of batteries, were a perfect tactical solution.
Commercial hair conditioners aren’t just expensive, they’re loaded with chemicals. Why don’t you whip up something more natural at home?
Watch this video and learn how to make the ultimate roasted chicken. The secret is a lemon, garlic and herb compound butter under the skin.
If you're trying to be a pacifist or a good soul in Deus Ex: Human Revolution, check out this guide on how to save Malik without killing anyone. It will really help if you have the Cloak 3 augmentation for the added chemical resistance.
Make a flexible aluminum electroluminescent display using aluminum foil, EL phosphors and a simple electrolytic etching bath. This video shows the chemical process behind etching foil in an electrolytic bath, and develops it into a practical application for it by creating an electroluminescent caution display.
In this tutorial, learn all about the difference between breads at supposedly healthy sandwich shop, Subway. Did you know that the new 9 grain bread actually has the same nutritional value as the plain white bread they offer? Find out what scary chemicals are hiding inside your lunch with this clip from Food Facts TV.
Do you feed your kids the yellow box lunch? Sure, it's easier than making a sandwich from scratch - but what's easy is usually not healthy. Check out this clip and learn all about the dangers lurking inside the iconic yellow box. Lunchables are full of chemicals, fats, sodium and calories.. watch this Food Facts clip and keep your family healthy.
