Chem Help is an app to help with a regular to honors chemistry class. It can find the molar mass and percent composition of any compound you enter. It lists all the elements and their ion charges, properties, electron configurations, atomic numbers and atomic mass. It lists common polyatomics and their charges and formulas. It can convert between moles, grams, and atoms for different compounds. Also, it can give the hydrate formula when given the water mass, anhydrate mass and anhydrate formula and includes a simple calculator in the app so you don't need to switch around applications. Also, if you want a new feature added you can email me within the app and I will try to get it worked in. 化学帮助是一个应用程序，以帮助经常以荣誉化学课。它可以找到你输入任何化合物的摩尔质量和百分比组成。它列出了所有的元素和它们的离子电荷，性质，电子结构，原子数和原子质量。它列出了常见的多原子及其收费和公式。它能摩尔，克，和原子之间转换为不同的化合物。此外，它可以给水合物公式时给出的水体，无水质量和无水配方，包括一个简单的计算器的应用程序，所以你不需要切换各地的应用程序。另外，如果你想有一个新的功能加入，您可以在应用程序内给我发电子邮件，我会设法得到它的工作英寸
4.0.1 - Changed the theme of the app to Holo White and added an action bar. In the action bar, the app icon now goes back and to remove bookmarks long click and they will be deleted automatically. Changed the Elements and formulas to expandable lists to get rid of the old fashioned dialog popup. Also to sort the elements and polyatomics there is a drop down menu up top. Lastly, the molar mass calculator is fixed and so should be many of the other calculations which relied upon it.