Advertisements
Advertisements
प्रश्न
Balance the following equation:
Zn + HNO3 `→` Zn(NO3)2 + H2O + NO2
Advertisements
उत्तर
Zn + 4HNO3 `→` Zn(NO3)2 + 2H2O + 2NO2
APPEARS IN
संबंधित प्रश्न
What is a balanced chemical equation? Why should a chemical equation be balanced?
State whether the following statement is true or false:
A chemical equation can be balanced easily by altering the formula of a reactant or product.
With the help of an appropriate example, justify that some of the chemical reactions are determined by a change in colour.
Give a chemical equation for the reaction involved in the above case.
Give one example of an exothermic reaction.
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
Balance the following equation. Also name the product formed.
`"CO" + "O"_2 → " CO"_2`
Write the chemical equation for the following word equation and balance them.
Calcium oxide + Carbon dioxide → Calcium carbonate
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of salt formed.
Identify the type of reaction taking place of the following case and write the balanced chemical equation of the reaction:
Potassium iodide reacts with lead nitrate to produce potassium nitrate and lead iodide.
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.
\[\ce{2H2O ->[electric][current] 2H2 + O2}\]
