One quarter of a 1-mole piece of iron turns to rust in six months. which rate describes the speed at which the iron rusts?

For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above

If two objects at different te,peraure are in contact with each other what happens to their temperature

What term describes technology that operates on an atomic level