Advertisements
Advertisements
Question
Give one example of an endothermic reaction.
Advertisements
Solution
Example of endothermic reaction: Barium hydroxide on reacting with ammonium chloride produces ammonia, water and barium chloride. It also results in decrease in temperature, as it consumes heat energy.
APPEARS IN
RELATED QUESTIONS
How will you indicate Exothermic reaction in a chemical equation?
Translate the following statement into chemical equation and then balance the equation:
Barium chloride reacts with zinc sulphate to give zinc chloride and barium sulphate.
Balance the given equation:
HNO3 + Ca(OH)2 
Ca(NO3)2 + H2O
Ammonia reacts with oxygen to form nitrogen and water. Write a balanced chemical equation for this reaction. Add the state symbols for all the reactants and products.
With the help of an appropriate example, justify that some of the chemical reactions are determined by Evolution of a gas.
Give chemical equation for the reaction involved in the above case.
State one characteristic of the chemical reaction which takes place when wax is burned in the form of a candle?
Is Decomposition of calcium carbonate an endothermic reaction or an exothermic reaction?
Zinc oxide reacts with carbon, on heating, to form zinc metal and carbon monoxide. Write a balanced chemical equation for this reaction. Name (i) oxidising agent, (ii) reducing agent, in this reaction.
Write word equation for the following skeletal equation:
\[\ce{KClO3 -> KCl + O2}\]
Write your observation for the following chemical reaction and name the product formed :
When manganese dioxide is added to potassium chlorate and heated.
Balance the following equation:
Fe2O3 + CO → Fe + CO2
Balance the following equation:
H2O + Cl2 → HCl + O2
Write the balanced chemical equation of the following reaction. potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water
Answer the following question:
How do acids and bases react with each other? What is the name of the process? What product is obtained from these reactions?
Write word equation for the following molecular equation:
\[\ce{N2 + 3H2 ⇌[Fe - 450°C][200 atoms] 2NH3 + \triangle}\]
Word equation:
State why [+ Δ] indication is seen after NH3.
State what 200 atmospheres – indicates.
State the function of Fe in the above reaction.
Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in colour seen.
Name the following:
Two gases which react under pressure in presence of a catalyst at elevated temperatures to give a gaseous product.
Give reason for the following:
Silver salts are kept in dark coloured bottles.
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
Fe2O3 + 2H2 → 2Fe + 3H2O
Which of the following are exothermic processes?
- Reaction of water with quick lime
- Dilution of an acid
- Evaporation of water
- Sublimation of camphor (crystals)
