Writing the Formula for Potassium Hydroxide

In this video we'll write the correct formula for Potassium Hydroxide.
To write the formula for Potassium Hydroxide we’ll use the Periodic Table and follow some simple rules.
Keys for Writing Formulas for Binary Ionic Compounds:
1. Write the symbols for each element.
2. Find the charge for each element using the Periodic Table. Write it above each element.
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 as CaS.
For a complete tutorial on naming and formula writing for compounds, like Potassium Hydroxide and more, visit:
www.thegeoexcha...
or watch
• How to Balance Chemica... • How to Name and Write ...
Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).
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Ternary Ionic
Writing the Formula for Potassium Hydroxide
In this video we'll write the correct formula for Potassium Hydroxide.
To write the formula for Potassium Hydroxide we’ll use the Periodic Table, a Common Ion Table, and follow some simple rules.
Because Potassium Hydroxidehas 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.
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.
For a complete tutorial on naming and formula writing visit:
www.thegeoexcha...
or watch
• How to Name and Write ...
Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).

[@FurriesAintGood]

You explain these much better than my teacher! hehe, thanks!

[@wbreslyn]

Happy to help!

[@FurriesAintGood]

@@wbreslyn :D

[@GamingPaaji]

KOH, just saved your 1 min

[@Suwa_14]

Oh best teacher

[@eliyahusoharev5858]

Much thanks!

[@ms_slytherin]

Hello! I wanted to ask that when we want to write the formula for Calcium hydroxide, we add Calcium Oxide (CaO) with water (H2O) to get Ca(OH)2. But when we have to do for potassium, we simply combine potassium with the hydroxide ion. Why is it so?