Examples of Common chemPad Notation

Molecules

Using subscripts to format molecular ratios in chemical formulas

H_2O

H2O

Simple Ions

Entering charges

Ca^2+

Ca2+

Molecular or Compound Ions

Entering charges and molecular ratios

SO_4^2-

SO42-

Complex Ions

Grouping with subscripts and superscripts

[Co(SCN)_2(H_2O)_4]^+

[Co(SCN)2(H2O)4]+

Isotope

Entering an isotopic mass number in the so-called M/A or M/Z format

^233_91Pa

Chemical Reactions

Entering a combination of correctly formatted chemical formulas and symbols

2 H_2O_2 --> 2 H_2O + O_2

2 H2O2 → 2 H2O + O2

Chemical Reactions with States of Matter

Entering a combination of correctly formatted chemical formulas with their respective states of matter and symbols

CH_4(g) + 4 S(s) -->

CS_2(l) + 2 H_2S(g)

CH4(g) + 4 S(s) → CS2(l) + 2 H2S(g)

Electron Configuration

Using complete notation

1s^2 2s^2 2p^5

1s2 2s2 2p5

Electron Configuration

Using noble gas notation

[He] 2s^2 2p^5

[He] 2s2 2p5

Equilibrium Expressions

Including a stacked fraction and multiplication dots

K_{c} = [COCl] * [Cl] / 
[CO] * [Cl_2]

Electrochemical Cell Notation

Enter cell line notation.

Mg(s) | Mg^2+(aq) || 
Zn^2+(aq) | Zn(s)

Mg(s) | Mg2+(aq) || Zn2+(aq) | Zn(s)