Advertisements
Advertisements
प्रश्न
Balance the following simple equation:
Fe + H2O ⇌ Fe3O4 + H2
Advertisements
उत्तर
3Fe + 4H2O ⇌ Fe3O4 + 4H2
APPEARS IN
संबंधित प्रश्न
Balance the chemical equation.
\[\ce{HNO3 +Ca(OH)2 -> Ca(NO3)2 + H2O}\]
What is wrong with the following chemical equation?
Mg + O → MgO
Correct and balance it.
How will you indicate a solution made in water in a chemical equation?
The chemical equations are balanced to satisfy one of the following laws in chemical reactions. This law is know as:
(a) law of conservation of momentum
(b) law of conservation of mass
(c) law of conservation of motion
(d) law of conservation of magnetism
Name the type of chemical reaction shown by the following equation:
2Mg+ O2 → 2MgO
In electrolysis of water, why is the volume of gas collected over one electrode double that of gas collected over the other electrode?
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of chlorine gas formed.
1 g of copper powder was taken in a China dish and heated. What change takes place on heating? When hydrogen gas is passed over this heated substance, a visible change is seen in it. Give the chemical equations of reactions, the name and the color of the products formed in each case.
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
NH3 + HCl ⇌ NH4Cl

Which of the following is the correct observation of the reaction shown in the above set up?
