Advertisements
Advertisements
प्रश्न
Balance the following equation:
\[\ce{Al + O2->Al2O3}\]
Advertisements
उत्तर
\[\ce{Al + O2->Al2O3}\]
Multiply Al by 4 and Al2O3 by 2 to make atoms of Al equal.
\[\ce{4Al + O2->2Al2O3}\]
To make oxygen atoms equal
\[\ce{4Al + 3O2->2Al2O3}\]
APPEARS IN
संबंधित प्रश्न
Why it is necessary to balance a chemical equation ?
Write a balanced molecular equation for the following word equation:
\[\ce{Calcium + oxygen->Calcium oxide}\]
Balance the following equation:
\[\ce{Pb3O4 + HCl->PbCl2 + H2O + Cl2}\]
Balance the following equation:
\[\ce{Fe2O3 + CO->Fe + CO2}\]
Balance the following important equation:
NH3 + Cl2 → HCl + NCl3 [nitrogen trichloride]
Balance the following important equation:
Cu + HNO3 (conc.) → Cu(NO3)2 + H2O + NO2
In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?
Write the balanced chemical equations for the following reactions and identify the type of reaction in each case.
- Iron (III) oxide reacts with aluminum and gives molten iron and aluminum oxide.
- Magnesium ribbon is burnt in an atmosphere of nitrogen gas to form solid magnesium nitride.
- Chlorine gas is passed in an aqueous potassium iodide solution to form potassium chloride solution and solid iodine.
- Ethanol is burnt in air to form carbon dioxide, water and releases heat.

Identify the types of reaction mentioned above. Give one example for type in the form of a balanced chemical equation.
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
