What is the mole-to-mole ratio of nitrogen to water?

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Why does his teacher ask him to balance the equation by including the correct coefficient