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Sodium chloride decomposes into metallic sodium and chlorine gas.

The correct answer for the chemical equation for this reaction is 2NaCl--->2Na + Cl2

Could somebody please explain how this answer is reached? It didnt say anywhere that there were 2 atoms of NaCl and I am wondering where the 2 came from.
Thank you!

2007-11-15 06:47:50 · 3 answers · asked by Jada 1 in Science & Mathematics Chemistry

3 answers

Reactant : NaCl
Products : Na and Cl2
NaCl has only one Cl atom. To get Cl2 we need two Cl atoms on the left.
So we have 2 NaCl.
2NaCl gives 2 Na atoms and one Cl2 molecule

2007-11-15 06:52:36 · answer #1 · answered by Dr.A 7 · 0 0

Chlorine comes in packages of 2, so you have to have Cl2 in the equation. But that means that you have to start with 2NaCl and get 2Na as well.

2007-11-15 06:51:48 · answer #2 · answered by steve_geo1 7 · 0 0

well since you have 2 chlorines on the one side you need to have 2 on the other side, so you put the two infront of the NaCl. now you have 2 sodiums on that side so you need 2 on the other side, so you put the two infront of the na, now there are equal numbers of Na and Cl on both sides

2007-11-15 06:52:26 · answer #3 · answered by Anonymous · 0 0

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