What is stoichiometry ?

only for faizan ​

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?

Helium decays to form lithium. which equation correctly describes this decay?