Iron turns to rust by the reaction 2Fe(s) + 3O₂(g) --> 2Fe₂O₃(s). Calculate the mass of iron needed to fully react with 18.0 moles of oxygen gas.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

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

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.