Based on what you’ve determined regarding one mole of sand and one mole of water, which statements must be correct? select all the correct answers.

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

May someone me with these science questions

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.