Chemistry Search Results

How To: Clever Chemistry-Based Cures to Common Kitchen Conundrums

You probably already know that cooking involves a ton of chemistry. Bread rises because of the reaction between the flour and leavener, and the delicious crust on your steak is formed by the Maillard reaction. Understanding the chemistry going on behind the scenes is one of the best ways to improve the quality of your food—it's much easier to fix a problem when you know what's causing it.

News: How Chemistry Creates the Ultimate Cheese Dip

I have a weird fondness for the texture, if not the taste of Velveeta (and Kraft American cheese slices). No other cheese has quite the same amount of slip or smoothness and manages to stay that way, undoubtedly because Velveeta contains sodium alginate, an algae derivative that helps it stay so silky-smooth even as it heats up. It also contains a high level of protein-to-fat ratios, which is what makes it a champion melter.

Classic Chemistry: Colorize Colorless Liquids with "Black" Magic, AKA the Iodine Clock Reaction

Want to make boring old colorless water brighten up on command? Well, you can control the color of water with this little magic trick. Actually, it's not really magic, but a classic science experiment known commonly as the iodine clock reaction, which uses the reactions between water and chemicals to instantly colorize water, seemingly by command. You can use different colorless chemicals to produce different colors, and you can even make the color vanish to make the water clear again.

How To: Understand reduction & oxidation in Chemistry

Curious about reduction & oxidation? In this two-part episode of The Science Catalyst hosted by Barry Lambson, the subject of Chemistry, reduction & oxidation is gone over with iron powder and copper sulphate. Oxidation and reduction are heavily related which is why they are both considered "redox reactions". Acids and bases may be thought of as reactions involving hydrogen, or protons, while redox reactions tend to be concerned with electron gain and loss.

How To: Convert grams to moles for chemistry

310tutoring shows viewers how to easily convert Grams to Moles for Chemistry. If you have 120 grams NaOH and we want this in moles we need a periodic table. Now, you need to figure out what the mass is of each individual element in NaOH. You need the mass of Na, O and H. Na mass is 23, O has 16 and H is 1. Add all of these up to get the molar mass of NaOH is 40 g/mol. Now use this to convert 120 g to moles. Now take 120 grams NaOh and multiply this by 1 mol NaOH/ 40 grams NaOH. You can cancel...

How To: Understand organic molecules in chemistry

In this video, we learn how to understand organic molecules in Chemistry. First, you will need to take a look at the chemicals that are inside of each of the different molecules. See how the molecules are made out and then see what number of different acids are inside of them. Once you learn this, you can see what the difference between this and other molecules are. This can all help you understand the beginning and end of what's inside of the molecules. If you aren't good at chemistry, you w...

How To: Understand chemical change in chemistry

In this video we learn how to understand chemical change in Chemistry. When you start out, you must first figure out what your cathode and anode is in the equation. Then, read it out to find out if it's oxidized. Once you have this figured out, you can find the conditions of temperature you need to maintain the chemicals. You can figure this out b doing a basic equation for all of the chemicals. Fill this in with the correct information, then the answer will be done. Make sure you understand ...

How To: Understand chemistry & chemical change

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...

How To: Name an alkyl halide (or haloalkane) in organic chemistry

What's in a name? Well, your chemistry grade, for one. In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to name alkyl halides. 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.

How To: Get a woman to feel chemistry with you

David Wygant discusses how to get a woman to feel chemistry with you. First, realize that no one can create chemistry and to have something really special with someone, you need to have chemistry. Everyone is attracted to different kinds of people. Chemistry and attraction is a numbers game. You can create your odds by creating energy with people. Observe women, listen to what they have to say and converse with them accordingly. These techniques may unlock a woman's attraction for you. Howeve...

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