Advertisements
Advertisements
Question
Balance the following equation:
\[\ce{Fe2O3 + H2->Fe + H2O}\]
Advertisements
Solution
\[\ce{Fe2O3 + H2->Fe + H2O}\]
There are 2 atoms of Fe on left.
\[\ce{Fe2O3 + H2->2Fe + H2O}\]
Now equate O atoms and use 3H2O on right.
\[\ce{Fe2O3 + H2->2Fe + 3H2O}\]
But H atoms on right are 6 make 3H2 on left.
∴ \[\ce{Fe2O3 + 3H2->2Fe + 3H2O}\]
It is balanced.
APPEARS IN
RELATED QUESTIONS
Balance the following equation:
Zn + HCI → ZnCI2 + H2
Balance the following equation. Also name the products formed.
`CO + O_2 → CO_2`
Balance the following equation:
\[\ce{Fe + Cl2->FeCl3}\]
Balance the following equation:
\[\ce{NO + O2->NO2}\]
Balance the following important equation:
Pb(NO3)2 + HCl → PbCl2 + HNO3
Balance the following important equation:
NH3 + Cl2 → HCl + NCl3 [nitrogen trichloride]
A teacher gave two test tubes to the students, one containing water and the other containing sodium hydroxide. She asked them to identify the test tube containing sodium hydroxide solution. Which one of the following can be used for identification?
When ferrous sulphate is heated strongly it undergoes decomposition to form ferric oxide as a main product accompanied by a change in colour from:
Which of the following is(are) an endothermic process(es)?
- Dilution of sulphuric acid
- Sublimation of dry ice
- Condensation of water vapours
- Evaporation of water
Complete the co-relation:
CuI2 : Brown : : AgCl : ______
