Periodic Changing Search Results

How To: Calculate weighted atomic mass

This video is about Level 2 atomic concepts, specifically the Pennium Lab. This helps you understand how atomic masses are derived for the periodic table. This teacher demonstrates how to do the calculation. He first reviews the Isotopes as they are different masses of the same type of atoms. He uses chromium as his example. It has a different number of neutrons in the nucleus. Using the equation, it could have either 26, 28, 29 or 30, with its 24 protons. So he subtracts the atomic number fr...

How To: Compare the difference of annual percentage rate

This video is about Annual percentage Rate(APR) and the Effective APR rate.The video begins with an example of a credit card which has a APR rate of 22.9% and daily periodic rate of 0.06274%.You can get the APR rate by multiplying the daily peiodic rate with 365, which in this case will be 0.06274*365 which is equal to 22.9.If you convert the daily periodic rate into decimal values , it will be 0.006274.So for example, if you have 1 dollar in your balance on day 1, on day 2 you will owe 1.000...

How To: Draw atoms of different elements

An atom is a basic unit of matter consisting of a dense, central nucleus surrounded by a cloud of negatively charged ions. The nucleus itself is a mixture of positively charged protons amd electrically neutral neutrons. Different groups of elements have respective atomic numbers. You can use the periodic table as a tool to draw atoms of elements. The periodic table is organized into periods, groups and families. This video is a tutorial that reviews the subatomic particles found in an atom. I...

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: 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: Save energy by checking and sealing windows

Protect your most important investment with seasonal maintenance. A regular schedule of periodic inspections and maintenance of windows can help prevent the most common, and costly, problems before they occur. Organized by season, this workshop covers topics such as repairing walkways and steps, cleaning out gutters, and checking the heating, AC and plumbing systems--everything you need to maintain your home year-round. Discover tips for checking window seals to save on heating in this how to...

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: Balance chemical equations with Olivia and Andrea

Olivia and Andrea created a song to the tune of "I'll stand by you" by the Pretenders to teach you how to balance chemical equations. A chemical equation requires coefficients in order to be balanced. You can balance a chemical equation by making use of the Periodic table. The example reaction in the song is that of aluminum and oxygen to produce aluminum oxide (Al + 02 -> Al203). You can systematically add coefficients to the reactants and products to balance the equation. A chemical equatio...

How To: Find percent by mass & percent composition

In chemistry you come across problems which ask you to find the percent by mass and percent composition of each element in a chemical compound. To do this the first step is to compute the molar mass. Use the periodic table to look up the mass of individual atoms and multiply it by the number of atoms to find the mass of that element. Now add up all the masses to arrive at the molar mass of the compound. Now to find the percent composition of an element divide the total mass of each element by...

Signal 101: How to Quickly Delete All Your Messages at Once

If thieves, hackers, law enforcement, or other would-be enemies should ever gain entry to your smartphone, they could also access conversations you've had in Signal Private Messenger. To better secure your encrypted communications, you can password-protect the whole app and its contents — but only on Android. Even then, it's necessary to perform data deletion on a periodic basis, if not immediately.

Food Tool Friday: This Cloth Bag Is Actually a Powerless Slow Cooker

Meet the Wonderbag. The "first non-electric slow cooker" uses an insulated bag made of poly-cotton fabric, polyester, and repurposed foam chips. You bring your one-pot meal to the desired cooking temperature, usually via the stovetop. Then you turn off the heat, pop the pot into the Wonderbag, and it will continue to cook thanks to the retained heat in the bag.

News: Help Choose the Winner of the First Windows Developer Award for 'Reality Mixer of the Year'

Microsoft Build 2017, the first of Microsoft's big developer conferences for the year, is just a few weeks away. This very popular conference, which has been going on since 2011, is known to sell out fast. In 2015, it sold out in under an hour, and in 2016, in less than 5 minutes. This year was no different, according to VentureBeat; While not quite as fast as last year with so many rumors of HoloLens on the horizon at the time, this year's Build was sold out in 8 hours. And for this year's B...

How To: Change your Gamertag on an Xbox 360

In this video, we learn how to change your Gamertag on an Xbox 360 (Xbox 101). On the console, go to the 'my Xbox' channel, and then highlight your gamer card. Then, press 'a' and edit profile. Go to gamer tag, then press continue and change your gamer tag. If it's already taken, you will have to change it to something else. You will have to pay 800 points to do this, so make sure you think about it before you do it so you don't end up paying more and more to change it. This will change your ...

How To: Change themes on your Xbox 360

This video tutorial is in the Video Games category in which Tina Wood will show you how to find and change themes on your Xbox 360 (Xbox 101). Head over to game marketplace, select explore game content, and then choose "themes and gamer pictures". Here you find "halo 3 ODST" and download it. Once it is downloaded, you can choose "change theme" right then and there to redecorate your dash board. You will find one image on my Xbox, one on the game library, one for the video, music and picture l...

How To: Change a flat tire on your bike

If you are a serious bike rider, chances are you have had or will have a flat tire at a disastrous time during a ride at some point. Knowing how to change out the bad tire and tube (and having a spare to replace them with) can make all the difference in saving your ride. This video will show you how to change the tire tube on you wheel while on the trail quickly and easily, getting you back riding.

How To: Change people's eye color in Photoshop CS4

Have you ever wished that you had different colored eyes? Or, for that matter, wished that Vanessa Hudgens had different colored eyes? Changing your real eye color is difficult and expensive, but this video tutorial will show you how to change the color of the eyes in photographs using Adobe Photoshop CS4. Make your whole family have blue eyes for your Christmas cards!

How To: Change your radiator fluid

Your radiator fluid is one of the many important aspects of your car. Neglecting your radiator fluid can cause expensive damage to your car and put it in the shop for much longer than you want to deal with! So listen up and find out how to properly change your car's radiator fluid. This video from Watch Mojo will show you how to change your car's radiator fluid.

How To: Change cabin and air filters in a Honda Element

Changing your car's cabin filter and air filter is a really important part of its regular maintenance. Doing this simple maintenance task does not require a professional mechanic, so save your money and watch this video to start saving money today and changing your own cabin and air filters. This video specifically covers changing the cabin and air filter in a Honda Element. You can pick up the parts from your local Honda dealer. Typically, you should change your filters every two years.

How To: Change a diaper

Attention first time mothers and fathers! One thing you will need to know when your baby comes to town, is how to change a diaper. A lot of them. This instructional how-to video takes you step by step through the process of changing a diaper and reminds us, that diapering your baby is a great time to spend with your baby.

How To: Change the font on an iPod Touch/iPhone

In this video from iPT2gGeec we learn how to change the font on the iPhone. Your phone needs to be jailbroken. Open up Cydia and search for Fonts. Select Font Swap. Install and confirm. Once loaded, go back to the home screen. It requires no reboot. You will see the Font Swap icon. Click on that. You can change dialer fonts, lock clock fonts, notes font, and system fonts. You can select any font listed that you want to change it to. When you change the font, then restart your iPhone and you w...

How To: Change the ringtone on your iPhone

Here you will see how to change the ringtone on your iPhone Follow these steps to change the ringtone on your iPhone: From the Home Screen tap Settings Sounds. Here you can input all kinds of settings, for example silent mode, vibrate, etc. Tap Ringtone, and tap the ringtone you wish to change. When you are done tap Sounds and change any other settings you wish to.

How To: Perform a quarter change magic trick

Learn how to perform the giant quarter change in this instructional video which takes you through this simple size changing coin magic trick step by step. You will need a a quarter and a prop giant quarter. Palming is an essential skill for many magic tricks, and creates the illusion of pulling an object out of thin air or changing objects into something else. Watch this video magic tutorial and find out how to perform a quarter change magic trick.

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