Android 2019 - Nh3 Aq, Chemical equation balancer, This program was created with a lot of help from: the book "parsing techniques - a practical guide" (imho, one of the best computer science books ever written.); the gold parsing system (hats off! what a great software product!) the calitha - gold engine (c#) (made it possible for me to do this program in c#). Chemical equation balancer, Balance any equation or reaction using this chemical equation balancer! find out what type of reaction occured.. Reversible reactions examples explained nh4cl <=> nh3, Doc brown's chemistry ks4 science. gcse/igcse/o level revision notes. part a reversible reactions. what is a reversible reaction? this page introduces you to the idea of a reversible reaction..