Rust (fe2o3) forms on abandoned cars such as the one in this photo through a series of reactions between iron in the car and oxygen in the atmosphere. the unbalanced chemical equation is given below. fe(s)+o2→fe2o3which element is oxidized and which is reduced during the formation of rust? a. is oxidized b. is reduced

Fe has been oxidized

O₂ has been reduced

Explanation:

Here we are going to determine the change in oxidation states and answer the question, remembering that oxidation is the loss of electrons and reduction is the gaining of electrons from the equation:

                                       4Fe     +         3O2→         2Fe2O3

oxidation states                 0                    0               3⁺     2⁻

so we see that oxygen goes from 0 to 2⁻ so it has been reduced, iron goes from 0 to 3⁺ so it has been oxidized.

We could also  answer this question  by noticing that iron has been combined with oxigen therefore it has been oxidized and oxigen has been reduced. I solved the question by determining the change in oxidation states because is more general and applie to any oxidation-reduction reaction

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation: