Chemical Reactions
Reaction Mechanism & Energy
$3.99
4.3for iPhone, iPad and more
Age Rating
Chemical Reactions Screenshots
About Chemical Reactions
Chemical Reactions is an ultimate tool for balancing chemical reactions, combining of the multistep chemical equations, investigation of complex reaction mechanisms and evaluation of thermodynamic parameters, such as enthalpy (heat release/absorption) and equilibrium constants.
The application interface consists of four reaction rows; each one of which is provided with the following functional elements:
Multiplier: Integer value, defining how many times this reaction proceeds during the process. Recalculates stoichiometric coefficients, enthalpy and equilibrium constant after pressing done button in the keyboard! Should be changed only after balanced reaction is set. To reset, delete all digits in the field and press done button.
Balance button (=): Balances the provided reaction. Ignores the already provided coefficients. Application automatically present final reaction after pressing done button in the keyboard! Does not intended to work with redox, radical and electron flow reactions, instead consider Electrochemistry app!
Reaction: The field to type in reactants and products divided by =. Charge or unpaired electrons (in free radicals), if exist must be provided as well, separated by coma: Na,+ ; R,: . Application automatically presents final reaction after pressing done button in the keyboard! Swipe the field from left-to-right to reverse the reaction. Enthalpy and equilibrium constant are adjusted on the fly. Useful for investigation of complex reaction mechanisms. Application automatically presents final reaction after pressing done button in the keyboard!
Keq: Equilibrium constant for particular row. Automatically recalculated after change of multiplier. Application automatically recalculates final values after pressing done button in the keyboard!
Enthalpy: Should be negative for exothermic reaction (heat release) and positive for endothermic reaction (heat absorption). Automatically recalculated after change of multiplier.
Application automatically recalculates final values after pressing done button in the keyboard!
Important points
Application supports state indexes: (g), (s), (l), (aq) – all are lowercase only, placed at the end of compound formula. Considered to be a crucial part of a molecule, so same molecules of different states appearing on the opposite sides of equation are not cancelled!
Charges of molecules or unpaired electrons must be placed at the end of molecule and separated by coma. They are also considered to be a crucial part of a molecule, so same molecules that have different charges, appearing on the opposite sides of equation are not cancelled!
For further details refer to www.volard.wordpress.com
The application interface consists of four reaction rows; each one of which is provided with the following functional elements:
Multiplier: Integer value, defining how many times this reaction proceeds during the process. Recalculates stoichiometric coefficients, enthalpy and equilibrium constant after pressing done button in the keyboard! Should be changed only after balanced reaction is set. To reset, delete all digits in the field and press done button.
Balance button (=): Balances the provided reaction. Ignores the already provided coefficients. Application automatically present final reaction after pressing done button in the keyboard! Does not intended to work with redox, radical and electron flow reactions, instead consider Electrochemistry app!
Reaction: The field to type in reactants and products divided by =. Charge or unpaired electrons (in free radicals), if exist must be provided as well, separated by coma: Na,+ ; R,: . Application automatically presents final reaction after pressing done button in the keyboard! Swipe the field from left-to-right to reverse the reaction. Enthalpy and equilibrium constant are adjusted on the fly. Useful for investigation of complex reaction mechanisms. Application automatically presents final reaction after pressing done button in the keyboard!
Keq: Equilibrium constant for particular row. Automatically recalculated after change of multiplier. Application automatically recalculates final values after pressing done button in the keyboard!
Enthalpy: Should be negative for exothermic reaction (heat release) and positive for endothermic reaction (heat absorption). Automatically recalculated after change of multiplier.
Application automatically recalculates final values after pressing done button in the keyboard!
Important points
Application supports state indexes: (g), (s), (l), (aq) – all are lowercase only, placed at the end of compound formula. Considered to be a crucial part of a molecule, so same molecules of different states appearing on the opposite sides of equation are not cancelled!
Charges of molecules or unpaired electrons must be placed at the end of molecule and separated by coma. They are also considered to be a crucial part of a molecule, so same molecules that have different charges, appearing on the opposite sides of equation are not cancelled!
For further details refer to www.volard.wordpress.com
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What's New in the Latest Version 4.3
Last updated on Apr 29, 2022
Old Versions
Compatibility update.
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Version History
4.3
Apr 29, 2022
Compatibility update.
4.2
Nov 10, 2021
Compatibility update.
4.1
Apr 2, 2021
Compatibility update.
4.0
Jan 10, 2021
Compatibility update.
3.8
Jul 19, 2020
Compatibility update.
3.7
Mar 19, 2020
Compatibility update.
3.6
Feb 7, 2020
Compatibility update.
3.5
Oct 21, 2018
Compatibility update.
3.2
Oct 14, 2018
UI update.
3.1
Oct 13, 2018
User interface update. Swipe to reverse any reaction.
2.8
Sep 27, 2018
Compatibility update.
2.7
Aug 13, 2018
Compatibility update.
2.6
Apr 26, 2018
Compatibility update.
2.5
Jan 20, 2018
Compatibility update.
2.4
Jan 8, 2018
Compatibility update.
2.2
Dec 22, 2017
Compatibility update.
2.1
Nov 25, 2017
Compatibility update.
2.0
Oct 18, 2017
Compatibility update.
1.7
Jul 3, 2017
Compatibility update. Long press on final reaction field will copy final equation to a clipboard.
1.6
Jun 13, 2017
Compatibility update.
1.5
Jun 9, 2017
Compatibility update.
1.4
Mar 14, 2017
Compatibility update.
1.2
Jul 8, 2016
Compatibility update.
1.1
May 3, 2016
Compatibility update.
1.0
Apr 20, 2016
Chemical Reactions FAQ
Click here to learn how to download Chemical Reactions in restricted country or region.
Check the following list to see the minimum requirements of Chemical Reactions.
iPhone
Requires iOS 15.1 or later.
iPad
Requires iPadOS 15.1 or later.
iPod touch
Requires iOS 15.1 or later.
Chemical Reactions supports English