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प्रश्न
Write an Explanation.
Balanced equations
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उत्तर
A balanced equation is a symbolic representation of a chemical reaction where the number of atoms for each element is identical on both the reactant (left) and product (right) sides.
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संबंधित प्रश्न
Write the balanced chemical equation for the following reaction.
\[\ce{Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride}\]
Translate the following statement into chemical equation and then balance the equation:
Aluminium metal replaces iron from ferric oxide, Fe2O3, giving aluminium oxide and iron.
Balance the given equation:
AI2(SO4)3 +NaOH 
AI(OH)3 + Na2SO4
Balance the gievn equation:
NaOH + H2SO4 
Na2SO4 + H2O
Potassium chlorate (KClO3) on heating forms potassium chloride and oxygen. Write a balanced equation for this reaction and indicate the evolution of gas.
Express the following facts in the form of a balanced chemical equation:
"When a strip of copper metal is placed in a solution of silver nitrate, metallic silver is precipitated and a solution containing copper nitrate is formed".
Explain the following reaction with one suitable example .
Decomposition reaction
Name the type of chemical reaction shown by the following equation:
Fe + CuSO4 → FeSO4 +Cu
Why do we need to balance chemical equations?
Write symbolic representation for the following word equation and balance them :
Aluminium + Chlorine → Aluminium chloride.
Balance the following equation .
N2 + O2 → NO
Balance the following equation. Also name the products formed.
\[\ce{Ag + S -> Ag2S}\]
To determine the percentage of water absorbed by raisins, raisins are soaked in water for:
Explain the terms with examples.
Balanced equation
Write the answer to the following.
Explain the similarity and difference in two events, namely adding NaOH to water and adding CaO to water.
Balance the following equation:
Fe + H2O → Fe3O4 + H2
Write the balanced chemical equation of the following reaction.
potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water
Write the balanced chemical equation of the following reaction.
silver nitrate → silver + nitrogen dioxide + oxygen
Write the balanced chemical equation of the following reaction.
zinc sulphide + oxygen → zinc oxide + sulphur dioxide
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the mass of salt formed.
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 the name and molecular formula of a carbon compound having its name suffixed with "-ol" and having two carbon atoms in its molecule. With the help of a chemical equation indicate what happens when this compound is heated with excess conc. H2SO4.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Electrical energy
Name the following:
Two non-metal which react explosively when brought in close contact.
Name the following:
Two gases which react under pressure in presence of a catalyst at elevated temperatures to give a gaseous product.
Name the following:
A catalyst which increases the rate of a chemical reaction.
Give reason for the following:
Silver salts are kept in dark coloured bottles.
Balance the following simple equation:
Mg + N2 → Mg3N2
Balance the following simple equation:
K + CO2 → K2O + C
Balance the following simple equation:
Al + H2O → Al2O3 + H2
Balance the following simple equation:
H2 + O2 → H2O
Balance the following simple equation:
\[\ce{N2 + H2 <=> NH3}\]
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
6NaOH + 3Cl2 → 6NaCl + NaClO3 + 3H2O
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
NaOH + CO2 → Na2CO3 + H2O
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Make a list of the elements in the chemical equation.
Which of the following is not a physical change?
Which of the following is the correct observation of the reaction shown in the above set up?
Why should a magnesium ribbon be cleaned before burning in air?
