hòa tan hoàn toàn 14,3 gam hỗn hợp gồm Al và FeCO3 bằng dd h2so4 loãng dư thì khối lượng dd sau phản ứng tăng so h2so4 ban đầu 9,6 gam . tính khối lượng Al va feco3 trog X ?

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —

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?

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease