In the Eqn: [3 Fe + 2 O2 → Fe3O4], How many moles of Fe3O4 will be produced from 2.8 mol Fe with an excess of Oxygen gas?

Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.

Which number should be placed before f2 on the reactants side equation to make equation balanced? xe + > xef4