How many molecules are in "87.56" liters of N2?

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Which statement is true regarding the diagram of circle p? the sum of y and z must be 2x. the sum of y and z must be x. the difference of z and y must be 2x. the difference of z and y must be x

Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.