Which is NOT an application of chemistry to life? * a. Fertilizers used by farmers

b. Soaps used to clean

c. Medicine used by doctors

d. Hammer used by construction worker​

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?