UP Board Class 12 th Chemistry paper 1 is scheduled to be held on February 20, 2018, and Paper 2 will be held on February 22, 2018. Students find chemistry a difficult subject because of the chemical ...

1 Write a word equation for the reaction. 2 Write a simple equation by writing the name of each substance with its symbol or formula. 3 Check whether the equation is balanced by counting the atoms of ...

To balance an unbalanced equation, you need to add numbers to the left of one or more formulae. Here is one way to work out how to do this for the reaction between nitrogen and hydrogen.