. Se colocan 5g de hierro (Fe) con 7g de azufre (S) para formar pirita (FeS2). Indique cuál es el reactivo en exceso y que masa de éste no reacciona. a) Fe; 2,48 b) Fe; 1,24 c) S; 1,29

d) S; 2,61 e) Fe; 3,25

your parents i think this could be it

explanation: no but i do not usually comment

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

the answers would be

the first one and the second one