INPUT ARTICLE: Article: Ionic compounds contain a metal and a nonmetal. Refer to the periodic table of elements to see what categories the elements in the compound belong to. For a two element ionic compound, the naming is simple. The first part of the name is the name of the metal element. The second part is the name of the nonmetal element, with the suffix "-ide." Here are some examples: Al2O3. Al2 = Aluminium; O3 = Oxygen. So the name would be "aluminium oxide." FeCl3. Fe = Iron; Cl3 = Chlorine. So the name would be "iron chloride." SnO2. Sn = Tin; O2 = Oxygen. So the name of this compound would be Tin Oxide. Metals in the D and F blocks of the periodic table are known as transition metals. Their charge is written with a Roman numeral when writing out the compound name. This is because they can have more than one charge and make more than one compound. Example: FeCl2 and FeCl3. Fe = Iron; Cl2 = Chloride -2; Cl3 = Chloride -3. The names would be iron(II) chloride and iron(III) chloride.

SUMMARY: Know what makes a compound ionic. Build the name. Recognize and name transition metals.

In one sentence, describe what the following article is about: If you already have iTunes, it should open automatically. If not, you can download iTunes for free. When iTunes opens, it will prompt you to register your iPod. You can do this now or put it off until later. It will also ask you to name your device, e.g. "Steve's iPod." "Syncing" is simply the act of matching the content in iTunes to your iPod, whether it's one song or your whole library. There are a few different ways to add items to your iPod. You can choose to add everything you have in iTunes to your iPod by checking the box next to "Automatically sync songs to my iPod" after you first connect your iPod to iTunes. You have the same option for apps and photos. If you want to add some items from your library but not others, leave this box unchecked and click "Done." To add individual items, find them in your iTunes library, then hold and drag your selection to your iPod icon on the left bar. #*Alternatively, you can click on your iPod icon, then click the "Music" (or whatever it is you want) button near the top of the screen. From here, you can select certain artists, genres, playlists or albums to add by checking the box next to the category you want. (For instance, if you want every Rolling Stones song in your library added to your iPod, locate the Rolling Stones under Artists, then just check the box next to it.) When you've chosen everything you want, click Sync in the lower right corner. To delete songs, you can stay in the above and uncheck what you no longer want, then click Sync. Or, you can click "Music" under the iPod menu on the left-hand side, highlight the songs you don't want, and just press the delete button on your keyboard. If you have already purchased apps on iTunes, click the "Apps" button near the top of the screen when you have your iPod menu open. Here, you can add apps to the iPod or remove them. This is also where you can sync up your email, Facebook, Twitter and other accounts via those apps.
Summary: Read and follow the direction in the Sync Your iPhone to iTunes article, as the iPod touch uses the same operating system as an iPhone. Using the USB cable, connect the iPod to your computer. Sync your content with iTunes with your (also included) cord. Understand the process to deleting a song from your device. Understand how you can add apps to your iPod, or how to Remove an app from the same iPod touch.

INPUT ARTICLE: Article: Downloading songs for offline use is only possible if you have a Spotify Premium subscription. You also need to be connected to Wi-Fi in order to download your Spotify musicyou can't download songs over cellular data. Tap the Spotify app icon, which resembles three black, horizontal bars on a green background. This will open your Spotify Home page if you're logged in. If you aren't logged in, tap LOG IN, then enter your Spotify account's email address and password. It's a tab in the bottom-right corner of the screen. This tab is either at the top of the screen (iPhone) or in the middle of the page (Android). Doing so opens a list of your Spotify playlists. You can also select Albums on this page. If you want to download every song in your library on Android, tap Songs here instead, then skip the next step. On the "Playlists" page, tap the playlist that contains the songs you want to download. If you opened the Albums page instead, select an album. It's near the top-right corner of the screen. The switch will turn green {"smallUrl":"https:\/\/www.wikihow.com\/images\/1\/15\/Iphoneswitchonicon1.png","bigUrl":"\/images\/thumb\/1\/15\/Iphoneswitchonicon1.png\/46px-Iphoneswitchonicon1.png","smallWidth":460,"smallHeight":300,"bigWidth":"46","bigHeight":"30","licensing":"<div class="mw-parser-output"><p>I edited this screenshot of an iPhone
<\/p><p>License: <a rel="nofollow" class="external text" href="http:\/\/en.wikipedia.org\/wiki\/Fair_use">Fair Use<\/a><br>
<\/p><\/div>"} to signify that the songs are downloading onto the Spotify mobile app. When a song finishes downloading, it will have a downward-facing arrow icon to the right of it. Whenever you're not connected to the Internet, you can open Spotify, tap the Your Library tab, go to the location of the music you want to listen to, and tap a song to begin listening.

SUMMARY:
Make sure you have a Spotify Premium subscription. Open Spotify. Tap Your Library. Tap Playlists. Select a playlist. Tap the grey "Download" switch. Listen to Spotify music offline.