1.5 gm mixture of `SiO_(2)` and `Fe_(2)O_(3)` on very strong heating leave a residue weighting 1.46 gm. The reaction responsible for loss of weight is
`Fe_(2)O_(3)(s) to Fe_(3)O_(4)(s) +O_(2)(g)`
What is the percentage by mass of `Fe_(2)O_(2)` in original sample.

1.5gm mixture of SiO_(2) and Fe_(2)O_(3) on very strong heating leave a residue weighting 1.46gm . The reaction responsible for loss of weight is . Fe_(2) O_(3) (s) rarr Fe_(3)O_(4) (s) + O_(2)(g) What is the percentage by mass of Fe_(2)O_(3) is original sample .

2.0 g sample contain mixture of SiO_(2) and Fe_(2)O_(3) , on very strong heating leave a residue weighing 1.96 g. The reaction responsible for loss of weight is Fe_(2)O_(3)(s) rarr Fe_(3)O_(4)(s) +O_(2)(g) . What is the percentage by mass of SiO_(2) in original sample ? [Atomic mass : Fe = 56, O = 16, Si = 28]

2.0g of a sample contains mixture of SiO_2 and Fe_2O_3 . On very strong heating, it leaves a residue weighing 1.96 g . The reaction responsible for loss of mass is given below. Fe_2O_3(s)rarrFe_3o_4(s)+O_2(s) , (unbalance equation) what is the percentage by mass of SiO_2 in original sample ?

2.0 g of a sample contains mixture of SiO_(2) and Fe_(2)O_(3) . On very strong heating , it leaves a residue weighing 1.96 g . The reaction responsible for loss of mass is given below . Fe_(2)O_(3)(s) to Fe_(3)O_(4)(s) + O_(2)(g) , (unbalance equation) lt brgt What is the precentage by mass of SiO_(2) in original sample ?

3 gm mixture of SiO_(2) and Fe_(2)O_(3) on very strong heating leaves a residue weighing 2.92gm because of conversion of Fe_(3)O_(4) liberating oxygen gas. What is the percentage by mass of SiO_(2) in original mixture?

What type of reaction does occur in the following ? Fe_(2)O_(3)(s) + 2Al(s) to Al_(2)O_(3)(s) + 2Fe(l)

Fe(s)+H_(2)O(l) overset(Boil) to Fe_(3)O_(4)+H_(2)uarr