Chemical Contaminants Search Results

How To: Make hydrogen gas with foil and Liquid Plumr

Learn how to make hydrogen with some household chemicals and items. This experiment is dangerous, so please exercise caution. You will use Liquid Plumr for this science experiment, and be warned, Liquid Plumber and hydrogen are dangerous, maybe not the aluminum foil, but the chemicals, definitely. Fill a balloon with it and watch it explode with a close match.

How To: Find molar mass

It’s time for science. You are able to calculate the molar mass for a compound using the periodic table and the amount of compound involved. You might need to know this in your everyday life but you will definitely need this in a chemistry class.

How To: Balance an easy chemical equation

In this video, we learn how to balance an easy chemical equation. You can do your equation by testing it out with the actual chemicals. Watch and see what the reaction is as they start to mix together. To balance this reaction out, you will need to analyze the number of atoms that each element has on both sides of the equation. For it to be balanced, you must have the same number of products and reactants in the equation. You cannot create or destroy matter, you can only change its form, so r...

How To: Balance chemical equations properly

In this video, we learn how to easily balance chemical equations. There are two sides of a chemical equation, both must be equal to get the proper reaction. To balance these out, first write out the number of atoms that is on each element on each side of the equation. After this, you will need to find the multiple between the matching elements. Once you find this, you will be able to balance out the equation for each of the elements. When you do this, you will have the same mass and atoms on ...

How To: Balance a chemical equation step-by-step

This is a video tutorial in the Education category where you are going to learn how to balance a chemical equation step-by-step. The left side of the equation is called the reactants and the right side is the new products. What will be new products when silver nitrate reacts with ferric chloride? The left side will be written as Ag NO3 + Fe Cl. The valence of Ag is +1, NO3 is -1, Fe is +3 and Cl is -1. On the right side the silver cannot go with iron because both are positive. So, it will be ...

How To: Make your own disappearing ink

One fun way to hide your secret messages and also amaze your friends is to make your own form of disappearing ink! You will need some chemicals though, and with chemicals make sure you either have a parent present and/or have the proper safety equipment! In this video you will learn how to create the ink, use it and make the message come back.

How To: Thoroughly clean tile grout

In this video Rich explains how to maintain a grout and tile floor. He uses a chemical cleaner which he describes as a "grout-smart type product." For regular maintenance of the floor Rich recommends using only 1oz of the product per gallon of warm water but for really badly stained floors using up to 12oz per gallon of warm water. Rich mixes the chemical into his water then applies the mixture to the tile using an ordinary deck scrubber, he then uses an angled scrubber which has bristles tha...

How To: Turn a penny into gold with common chemicals

This science experiment will show you how to turn a penny into gold with common chemicals. This video tutorial will demonstrate turning the copper penny into a silver penny and into a gold cent. All you need to make gold pennies is sodium hydroxide (also known as lye), zinc powder, a small glass beaker with some distilled water in it, a clean copper penny, a couple of measuring spoons, and a glass stirring rod.

How To: Play "Welcome to the Black Parade" on the piano

Watch this piano tutorial video to learn how to play "Welcome to the Black Parade" by My Chemical Romance on the piano. Instructions include the scales and key signatures and chord breakdowns. Beginners and intermediate pianists will be able to learn how to play My Chemical Romance's "Welcome to the Black Parade" by watching this helpful how-to video.

How To: Understand polyatomic chemical formulas

This is a video tutorial in the Education category where you are going to learn how to understand polyatomic chemical formulas. When writing the formula using polyatomics, the same cross-over rule applies. 1st identify the metal and non-metal. Then you write the symbols, write the charges, cross-over the charges from top to bottom, remove the charge and simplify the numbers and remove the 1s. for example, iron (II) phospahate. The "ate" ending implies that phosphate is polyatomic. The symbol ...

How To: Use natural products to clean your home without toxins

We all want to spic and span our kitchen countertops, our tile floors, and our bathrooms. But for the most part we can bet you've been unwittingly using storebought detergent cleaners or bleach. While these cleaners are in fact excellent at removing grime and buffing your dirty floors to a Midas touch perfection, they also come filled to the brim with known cancer-causing agents, synthetic chemicals, and other gnarly, hard to pronounce crap.

How To: Make glow sticks with DEP, TCPO, sodium acetate & dye

If you prefer glow sticks over candles during a power outage, then this how-to is for you! Although glow sticks are used as temporary light sources, there are other applications for them. Divers use them for night diving, fisherman use them to catch swordfish, and the military uses them for light markers, along with infrared versions used in conjunction with night vision devices. But with all these handy uses for glow sticks, the most popular is — recreational use, like dancing at raves, some...

How To: Make TCPO (for making glow sticks)

How to make TCPO or bis(2,4,6-trichlorophenyl) oxalate, used in glow stick reactions. WARNING: This procedure should only be performed by, or under the direct supervision of, an experienced chemist. Please refer to the material safety data sheets of all chemicals for their hazards. Synthesis must be performed in a fumehood.

How To: Swim a proper freestyle

New techniques may improve a swimming pool workout from Masters coach Nancy Kirkpatrick Reno. Before sticking a toe in the water, consider this advice: * Swim in a pool that's at least 20 to 25 yards long; those pools can usually be found at high schools and some gyms. A 50-meter Olympic-size pool is best, but not everyone has access to that. "If you're going to become a lap swimmer," Kirkpatrick-Reno says, "you can't go any shorter or you'll be constantly turning." An outdoor pool is prefera...

How To: Clean fruit with vinegar

Keeping things clean is very important to prevent food born illnesses. Washing fruit is important. You can take care of many problems by just running them under water. You can use white vinegar and hydrogen peroxide to clean fruit. Start by spraying some white vinegar on the fruit and then a little hydrogen peroxide. After you spray the fruit with white vinegar and hydrogen peroxide rinse it in water and that will wash all the vinegar and peroxide off of the fruit. The vinegar and peroxide wi...

How To: Pick a safe chemical lightening/whitening cream

You'd think that in the United States we have more of a problem of women wanting to look tan year round than white and pale. But many women actually crave the vampirish pale complexion, and because not all of them are born with it, some turn to whitening/lightening creams. Some women also turn to these creams because they claim to fade dark spots.

How To: Balance a chemical equation easily

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...

How To: Easily balance a chemical equation

In this video, we learn how to easily balance a chemical equation. In a balanced equation, there should be the same number of atoms on both sides of it. There are no rules that explain how you get a balanced reaction from expression. First, start on the molecule or compound that is the most atomically complex. After you look at this, you can learn how to make the rest of the equation equal to each side. This is a complex process that you must walk through to figure out, but it will result in ...

How To: Identify willow tree damage caused by a borer

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...

How To: Balance chemical equations with MyTutorBuddy

Learn how to balance chemical equations with MyTutorBuddy. Learn about this in this video tutorial. There are four easy steps to do this. Step #1 – place 1 by the most complex compound. Step #2 – balance anything that is not an element. Step #3 – balance the elements. Step #4 – multiply by the lowest common multiple. The 4th step doesn’t always come in to play. The video demonstrates with an equation: C3H8 + O2 -> H2O + CO2. But, this equation is not balanced. Using the 1st three steps, the v...

How To: Kill Cockroaches in a Green Way

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.

How To: Follow three rules to balance chemical equations

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...