Advertisements
Advertisements
प्रश्न
Complete the given chemical reaction.
\[\ce{CuSO_{4(aq)} + Fe_{(s)} ->}\]______ + ______
Advertisements
उत्तर
\[\ce{\underset{\text{sulpate}}{\underset{\text{Copper}}{CuSO_{4(aq)}}} + \underset{\text{Iron}}{Fe_{(s)}} -> \underline{\underset{\text{sulphate}}{\underset{\text{Ferrous}}{FeSO_{4(aq)}}}} + \underline{\underset{\text{Copper}}{Cu_{(s)}}}}\]
APPEARS IN
संबंधित प्रश्न
What does the symbol (aq) represent in a chemical equation?
Translate the following statement into a chemical equation and then balance the equation:
Phosphorus burns in oxygen to give phosphorus pentoxide.
Translate the following statement into a chemical equation and then balance the equation:
Carbon disulphide burns in air to give carbon dioxide and sulphur dioxide.
Balance the following equation:
\[\ce{Na + O2 -> Na2O}\]
Balance the following chemical equation:
\[\ce{NH3 -> N2 + H2}\]
Explain, with an example, how the physical states of the reactants and products can be shown in a chemical equation.
State one characteristic of the chemical reaction which takes place when dilute hydrochloric acid is added to sodium carbonate.
What do you understand by exothermic reactions?
When metal X is treated with a dilute acid Y, then a gas Z is evolved which burns readily by making a little explosion.
- Name any two metals which can behave like metal X.
- Name any two acids which can behave like acid Y.
- Name the gas Z.
- Is the gas Z lighter than or heavier than air?
- Is the reaction between metal X and dilute acid Y exothermic or endothermic?
- By taking a specific example of metal X and dilute acid Y, write a balanced chemical equation for the reaction which takes place. Also indicate physical states of all the reactants and products.
Write a balanced chemical equation with state symbols for the following reaction:
Barium chloride solution reacts with sodium sulphate solution to give insoluble barium sulphate and a solution of sodium chloride.
A white precipitate can be obtained by adding dilute sulphuric acid to ______.
A white precipitate will be formed if we add common salt solution to ______.
Write your observation for the following chemical reaction and name the product formed:
When sugar is heated.
Write symbolic representation for the following word equation and balance them :
Calcium carbonate → Calcium oxide + Carbon dioxide.
Balance the following equation :
Pb3O4 → PbO + O2
Balance the following equation. Also name the products formed.
\[\ce{Ag + S -> Ag2S}\]
Balance the equation stepwise.
H2S2O7(l) + H2O(l) → H2SO4(l)
Balance the following equation:
Ca + N2 → Ca3N2
Balance the following equation:
Pb3O4 + HCl → PbCl2 + H2O + Cl2
What information do the following chemical equations convey? Mg + 2HCl → MgCl2+ H2
Why should an equation be balanced? Explain with the help of a simple equation.
Write the balanced chemical equation of the following reaction.
silver nitrate → silver + nitrogen dioxide + oxygen
Write the balanced chemical equation of the following reaction.
aluminium carbide + water → aluminium hydroxide + methane
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.
Write word equation for the following molecular equation:
\[\ce{H2 [g] + Cl2 [g] ->[sunlight] 2HCl}\]
Word equation:
State which form of energy is utilised in the above chemical reaction.
Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in colour seen.
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.
\[\ce{C +2S -> CS2}\]
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:
Lead nitrate to ammonium hydroxide.?
Give word equation for the following chemical reaction and give the names of the product formed.
Zn + 2HC1→ ZnCl2 + H2
Balance the following simple equation:
C + O2 → CO
Balance the following simple equation:
ZnS + O2 → ZnO + SO2
Balance the following simple equation:
Al + O2 → Al2O3
Balance the following simple equation:
Zn + HCl → ZnCl2 + H2
Balance the following simple equation:
Mg + CO2 → MgO + C
With reference to a chemical equation state which of the statements 1 to 5 pertain to A or B.
A: Information provided by a chemical equation.
B: Limitations of a chemical equation.
- The nature of the individual elements.
- The speed of the reaction.
- The state of matter in which the substance is present.
- The completion of the reaction.
- The direction of the reaction.
Give a balanced equation by the partial equation method, [steps are given below].
Oxidation of Lead [II] Sulphide by Ozone
- Ozone first decomposes to give molecular oxygen & nascent oxygen.
- Nascent oxygen then oxidises lead [II] sulphide to lead [II] sulphate.
Reema took 5ml of Lead Nitrate solution in a beaker and added approximately 4ml of Potassium Iodide solution to it. What would she observe?
Three beakers labelled as A, B and C each containing 25 mL of water were taken. A small amount of NaOH, anhydrous CuSO4 and NaCl were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solutions contained in beakers A and B, whereas in case of beaker C, the temperature of the solution falls. Which one of the following statement(s) is(are) correct?
- In beakers A and B, exothermic process has occurred.
- In beakers A and B, endothermic process has occurred.
- In beaker C exothermic process has occurred.
- In beaker C endothermic process has occurred.
