Why Chemical Equations?
Chemical Equations were brought to Socrative to make the experience of questioning your students more seamless.
Teachers in the Sciences realm can enjoy chemical formulae and equations using the Equation Editor to display element symbols, superscript and subscript notation, ions and isotopes, bonds, equilibrium reaction arrows etc.  allowing a more flexible display and more natural input of chemical formulae and equations.
Using Chemical Equations
With the Equation Editor, you can use the mhchem notation to write Chemical Equations and Formulas, you can also insert math symbols and equations at the same time.
Chemical Equations have a descriptor to let the equation editor know your intent. To get started, write \ce{formulae}. The delimiter \ce{...}
is required since you can use mathematics delimiters for chemical formulas.
Chemical Equation Notation
Formulae
You can use the delimiter \ce(...)
and insert your formula.
Amounts
Place amounts directly in front of a formula. A small space will be inserted automatically.
Equations
Charges
Stoichiometric numbers
Nuclides, isotopes
It might be ambiguous whether a superscript belongs to the left or right element. There is automatic detection (digits only = mass number = belongs to the right side), but to ensure it, you can type {}
as a separator.
Although the below syntax works in most contexts, occasionally, a leading pair of braces {}
may be required \ce{ {}^{227}_{90}Th+ }
Reaction arrows
Each arrow can take two optional arguments: one for above and one for below. The arrow arguments use the same input syntax as the \ce
command.
 
 
 
 
 
 
 
 
upright text 

italic math 

Parentheses, brackets, braces
Use parentheses ( )
and brackets [ ]
normally. Write braces as \{ \}
. For large parentheses, \left
and \right
macros need to be in the same math environment, so you might have to put \ce
into $
into \ce
, but that’s fine.
Variables like x, n, 2n+1
If a more complex term is not properly recognized, you can switch to math mode (= italics) explicitly.
Bonds
The Equation Editor tries to differentiate whether \ce{}
should be a bond, a charge or a hyphen.
 
 
 
 
Not Supported 

Not Supported 

 

Addition compounds
You can use *
or .
to sum compounds
Oxidation states
Equation operators
 
not to be confused with bonds  
not to be confused with bonds  

Precipitate and gas
Use v or (v) for precipitate (arrow down) and ^ or (^) for gas (arrow up), both separated by spaces.
Unpaired electrons, radical dots
Krögervink notation (not supported for latex yet)
 
 
 
 
upright V = Vanadium, italic V = vacancy 

Not Supported Chemical Notation
We don’t fully support
states of aggregation,
crystal systems.