Chemistry, asked by atharvaaj, 1 year ago

Why is hydrogen written H2 instead of H?


poojaoberoi: See this is because substances like Oxygen, Hydrogen,Nitrogen chlorine are present as diatomic state. 2 atoms means a molecule. So, we can say that they are present in molecular form. We always find O2,H2,Cl2 and S8(polyatomic) and not O,H,Cl,S. These atoms as a sinngle are not stable or fixed. So, they have to be in environment. If they are not stable they will not be in environment.
poojaoberoi: So, one oxygen atoms combine with another oxygen atom to make a molecule.It is a rule that in chemical equations we write symbols witht their atomicity.
poojaoberoi: 1. The symbols of elements which tend to occur as diatomic molecules.
I Bring Clay For Our New House
Or
Have No Fear Of Ice Cold Beer.
poojaoberoi: I hope it is clear
poojaoberoi: But remember if in exams, the question is write the symbol of Hydrogen, Oxygen,Nitogen,Sulphur then you will write H O N S only. This ( atomicity concept) is only applicable for chemical equations.
sunul: shut up disgusting
poojaoberoi: Why are u saying me like this.
poojaoberoi: do not abuse.
poojaoberoi: i was just helping question asker.
poojaoberoi: sorry if u found it bad, but answer is correct. Whenever someone asks a question, we must always help him by giving him every minute detail. I was the one who said thanks for your answer and upvoted it and you are saying like this to me. Please do not use such terms. It is just a friendly request. It is for your benefit. Never discourage a writer.

Answers

Answered by Ranu2004
4
hydrogen is written in H
But when reaction we take two molecules of hydrogen so we written H2

Ranu2004: I am not sure for this
sunul: it is sure please mark it is brain list
sunul: plzzzxxxxxxx
Answered by Atinshay
0

Que: Why sound cannot be heard directly on the surface of moon?

Ans: Because there is no air on the moon to carry the sound waves.So, we cannot talk to one another directly on the moon as we do on earth,even though we may be very close. Similarly there is no air in outer space to carry sound waves. It is all vacuum. The astronauts who land on moon talk to one another through wireless sets using radio waves. This is because radio waves can travel even through vacuum.

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