Question

what do the following stand for
1.H
2. H2
3. 2H
4. 2H2

Please and we fast it's urgent ​

Answer 1

Answer:

H stands for hydrogen

Hope it helps you

Answer 2

Answer:

H= hydrogen single atom

H2=Hydrogen molecule

2H=2 moles of hydrogen atom

2H2=2 moles of hydrogen molecule