For the reaction 4 Fe + 3 O2 → 2 Fe2O3, explain how you would calculate the moles of iron needed to make 10 moles of Fe2O3?​

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

Which statement best explains the relationship between an area is geography and the temperature of its surface water

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-