In this video we'll write the correct formula for Beryllium hydroxide : Be(OH)2.
To write the formula for Beryllium hydroxide we’ll use the Periodic Table, a Common Ion Table, and follow some simple rules.
Because Beryllium hydroxide has a polyatomic ion (the group of non-metals after the metal) we'll need to use a table of names for common polyatomic ions, in addition to the Periodic Table.
Keys for Writing Formulas for Ternary Ionic Compounds:
1. Write the element symbol for the metal and its charge using Periodic Table.
2. Find the name and charge of the polyatomic ion on the Common Ion Table (see [ Ссылка ]).
3. See if the charges are balanced (if they are you're done!)
4. Add subscripts (if necessary) so the charge for the entire compound is zero.
5. Use the crisscross method to check your work.
Notes:
- Don't write the subscript '1'.
- If you use the criss-cross method and end up with something like Ca2S2 you'll need to reduce the subscripts to Ca1S1 which we write CaS.
Note: It is possible to have two polyatomic ions such as NH4NO3. In this case find and write both names as found on the Common Ion Table.
---Formula Writing Resources---
Finding Ionic Charge: [ Ссылка ]
Memorizing Polyatomic Ions: [ Ссылка ]
Criss-Cross Method: [ Ссылка ]
For a complete tutorial on naming and formula writing for compounds, like Beryllium hydroxide and more, visit:
[ Ссылка ]
Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 8.0
How to Write the Formula for Beryllium hydroxide
Теги
Beryllium hydroxidewriting the formula for Beryllium hydroxideformula for Beryllium hydroxideionic compoundscommon ion tablehow do I write the formula for Beryllium hydroxidewhat is the formula for Beryllium hydroxidewrite the formula of chemical compound Beryllium hydroxideformula writing for chemical compoundsBe(OH)2formula for Be(OH)2correct formula for Beryllium hydroxideBeryllium hydroxide compound formulachemical formula for Beryllium hydroxide is