The reaction between ammonia and boron trifluoride, BF3
If you have recently read the page on covalent bonding, you may remember boron trifluoride as a compound which doesn't have a noble gas structure around the boron atom. The boron only has 3 pairs of electrons in its bonding level, whereas there would be room for 4 pairs. BF3 is described as being electron deficient.
The lone pair on the nitrogen of an ammonia molecule can be used to overcome that deficiency, and a compound is formed involving a co-ordinate bond.
Using lines to represent the bonds, this could be drawn more simply as:
The second diagram shows another way that you might find co-ordinate bonds drawn. The nitrogen end of the bond has become positive because the electron pair has moved away from the nitrogen towards the boron - which has therefore become negative. We shan't use this method again - it's more confusing than just using an arrow.
The chemical equation is:2 NF3--------- ----------------->N2 + 3 F2
2NF3 --> N2 + 3F2
Formula: BrF3
Decomposition equation:2 NF3 ----> N2 + 3 F2
The written statement that shows a chemical reaction is called an "equation". The representation of each reactant is called its chemical formula.
The decomposition of nitrogen trifluoride (NF3) into nitrogen and fluorine gases can be represented by the chemical equation: 2 NF3 -> N2 + 3 F2
The chemical equation is:2 NF3--------- ----------------->N2 + 3 F2
2NF3 --> N2 + 3F2
2NF3 --> N2 + 3F2
Formula: BrF3
The chemical equation is:2 NF3 + 3 H2 = N2 + 6 HF
Decomposition equation:2 NF3 ----> N2 + 3 F2
A chemical equation is a shorthand description of a chemical reaction.
A chemical reaction can be represented by a chemical equation.
The written statement that shows a chemical reaction is called an "equation". The representation of each reactant is called its chemical formula.
We see the chemical reaction but we write the chemical equation.
A chemical reaction is represented by a chemical equation.