WILL MARK BRAINLIEST How many moles of H2SO4 are needed to react with an equivalent of NaOH to produce 165 moles of sodium sulfate?

2 NaOH + H2SO4 → Na2SO4 + 2 H2O

I know the answer is 82.5 but I don't know how to work it out.

In 2002, the rare earth elements mine in mountain pass, california was closed because

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw