The following are the steps involved in drawing Lewis structure of the polyatomic trisulfide anion 
:
Total number of valence electrons = 
Resonance is not possible in this ion. The molecular geometry of the ion will be bent as there are two lone pairs and two bond pairs on the central atom.
ATP is considered to be an energy carrier molecule. Energy is actually located in this molecule B in the bonds between phosphate groups.
No because they have the same number of protons not neutrons. fine, their mass nos are equal but isotopy is due to different number of neutrons.
According to Boyle's Law, P1V1 = P2V2
where P1 and V1 are initial pressure and volume respectively. P2 and V2 are final pressure and volume receptively.
Given: P2 = 4 P1 and V1 = 10.0l
∴ V2 = 2.5 l
Answer: Final volume of system is 2.5 l
It would be 1 or 2 because if the number is higher than 5 you need to round up , if its lower than 5 you need to round down.
