Advertisements
Advertisements
प्रश्न
CaCO3 + 2HCl[dil.] → CaCl2 + H2O + CO2 [g]
State the information not conveyed by the above chemical equation.
उत्तर
Information not conveyed are :
- Time, a reaction takes to complete.
- About the concentrations of reactants and products.
- Speed of reaction.
- Changes in color occurring – during the reaction.
- Whether heat is given out or absorbed during the reaction.
- The physical state of reactants and products.
APPEARS IN
संबंधित प्रश्न
Translate the following statement into chemical equation and then balance it.
Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
When a mixture of gases X and Y is compressed to 300 atm pressure and then passed over a catalyst consisting of a mixture of zinc oxide and chromium oxide (heated to a temperature of 300°C), then an organic compounds Z having the molecular formula CH4O is formed. X is a highly poisonous gas which is formed in appreciable amounts when a fuel burns in a limited supply of air; Y is a gas which can be made by the action of a dilute acid on an active metal; and Z is a liquid organic compound which can react with sodium metal to produce hydrogen gas.
(a) What are X, Y and Z?
(b) Write a balanced chemical equation of the reaction which takes place when X and Y combine to form Z. Indicate the conditions under which the reaction occurs.
What is a chemical equation?
Balance the following equation. Also name the products formed.
\[\ce{Ag + S -> Ag2S}\]
Balance the following equation. Also name the product formed.
CO2 + C → CO
Define: Endothermic reaction
In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:
Dilute hydrochloric acid to silver nitrate.
Balance the following simple equation:
NO + O2 → NO2
Balance the following simple equation:
Zn + NaOH → Na2ZnO2 + H2
Write a balanced equation for the following word equation:
Aluminium + Oxygen → Aluminium oxide