Answer:
A.
4Fe + 3O2 2Fe2O3 .........................
The correct answer is d hope i could help
Answer:
D
Explanation:
add all the know sides 8+8+3+5=24
perimeter of half a semicircle=circumference of half a semicircle
if circle is C=π×d
than semi C=1/2×d×π
C=½×4×π
C=2pi
so 24+2pi