Question

cau1 hoan thanh cac pt 

a, Fe+Cl2→FeCl3

b, NaOH + H2SO4→ Na2SO4+H2O

c, Al2O3+HCl→AlCl3+H2O

d, SO2+O2→SO3

cau2 

doit chay hoan toan 28g trong oxi

a, viet pt hoa hoc biet ten phan ung 

b, tinh khoi luong chat tao thanh va the tich khi O2 can dung 

Answer 1

aj dup mjnh voi maj la ngay cuoi cung roi 

Answer 2

câu 1 :

a) 2Fe + 3Cl2  \(\rightarrow\)2FeCl3

b)2NaOH + H2SO4 \(\rightarrow\)NA2SO4 + 2H2O

c)Al2O3 + 6HCl \(\rightarrow\)2AlCl3 + 3H2O

d) SO2 + \(\frac{1}{2}\)O2 \(\rightarrow\)SO3

Answer 3

CÂU 2;

2I₂ + 5O2 ---->2I2O5

        0.875

nO2=0,875mol  ----->m I2O5=0.175*127=22.225 gam

V o2=0.875*22.4=19.6 lít