Advertisements
Advertisements
प्रश्न
Translate the following statement into chemical equation and then balance it.
Hydrogen sulphide gas burns in the air to give water and sulphur dioxide.
उत्तर
\[\ce{H2S_{(g)} + O2_{(g)} -> H2O_{(l)} + SO2_{(g)}}\]
Balanced equation:
\[\ce{2H2S_{(g)} + 3O2_{(g)} -> 2H2O_{(l)} + 2SO2_{(g)}}\]
APPEARS IN
संबंधित प्रश्न
How will you indicate Endothermic reaction in a chemical equation?
Balance the given equation:
NH3 + CuO 
Cu +N2 +H2O
Fill in the following blank with suitable word:
Chemical equations are balanced to satisfy the law of ............
Give one example of a chemical reaction characterised by change in state.
What do you understand by endothermic reactions?
Write your observation for the following chemical reaction and name the product formed :
When ammonium chloride is heated with sodium hydroxide.
Complete the following equation:
CH3COOH + NaOH →
Balance the equation stepwise.
NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + H2O(l)
Write the chemical equation for the following word equation and balance them.
Carbon + Oxygen → Carbon dioxide
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate mass of MnO2 used.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the mass of chlorine gas 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.
Answer the following question.
What is observed when 2 mL of dilute hydrochloric acid is added to 1 g of sodium carbonate taken in a clean and dry test tube? Write a chemical equation for the reaction involved.
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:
Iron [II] sulphate to sodium hydroxide.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Catalyst
Balance the following simple equation:
FeCl2 + Cl2 → FeCl3
Balance the following simple equation:
K + CO2 → K2O + C
Balance the following simple equation:
CaO + HCl → CaCl2 + H2O
Write a balanced equation for the following word equation:
Potassium bicarbonate → Potassium carbonate + Water + Carbon dioxide
