A:AnswerYou can charge small electronics such as a phone or tablet but it does not support charging the Chromebook itself. You would need to use the included AC adapter to charge the Chromebook.
A:AnswerAccording to Google at https://www.chromium.org/chromium-os/chrome-os-systems-supporting-android-apps this model does support Google PlayStore. Google Chrome is the stable version of the browser available. Its the final tried & tested product released to be used. Google Chrome Beta is a 'still under experiment' version of the browser with new features & instabilities which are not there on the stable version.
A:AnswerAcer Chromebooks purchased new have a one year manufacturer's warranty from date of purchase. Warranty info is posted here: https://www.acer.com/ac/en/US/content/warranty-information
A:AnswerYes, but there are different vpn scenarios and you need to ask a more specific question. You can use openvpn from chrome and many other flavors of vpns and it has settings for this, but your specific scenario might need some software or vpn type that isn't available. You need to ask a more specific question. If you want to connect to another desktop, like microsoft remote desktop lets you do, then you need to buy a cheap rdp app. You can access desktop that you have given yourself remove access to by using google remote desktop.