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प्रश्न
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.
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उत्तर
Elements in the chemical reaction are: Na, O, H and S.
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संबंधित प्रश्न
What is a balanced chemical equation? Why should a chemical equation be balanced?
Balance the following chemical equation.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
On what basis is a chemical equation balanced?
Complete and balance the following equation:
\[\ce{Ca(OH)2 + {..........} -> CaCO3 + H2O}\]
Balance the following equation:
\[\ce{Na + O2 -> Na2O}\]
Balance the following equation:
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Give one example of a chemical reaction characterised by a change in state.
What do you understand by endothermic reactions?
Balance the following chemical equation:
\[\ce{Pb(NO3)2_{(s)} ->[Heat] PbO_{(s)} + NO2_{(g)} + O2_{(g)}}\]
What happens when silver nitrate solution is added to sodium chloride solution?
- Write the equation for the reaction which takes place.
- Name the type of reaction involved.
Write symbolic representation for the following word equation and balance them :
Aluminium + Chlorine → Aluminium chloride.
Write symbolic representation for the following word equation and balance them :
Iron + Sulphur → Iron sulphide.
Balance the following equation Also name the product formed.
`"K" + "CI"_2 → "KCI"`
Balance the following equation. Also name the product formed.
`"KCIO"_3 → "KCI" +"O"_2`
Write down what you understood from the following chemical reaction.
AgNO3(aq) + NaCI(aq) → AgCI ↓ + NaNO3(aq)
Write the chemical equation for the following word equation and balance them.
Calcium oxide + Carbon dioxide → Calcium carbonate
Balance the following equation:
Fe + H2O → Fe3O4 + H2
Balance the following equation:
PbS + O2 → PbO + SO2
Balance the following equation:
S + H2SO4 → SO2 + H2O
Balance the following equation:
NaHCO3 → Na2CO3 + H2O + CO2
What information does the following chemical equation convey?
Zn + H2SO4 → ZnSO4+ H2
Write the balanced chemical equation of the following reaction. iron + sulphuric acid → ferrous sulphate + hydrogen.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
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 moles of chlorine gas formed.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the mass of acid required.
Define: Endothermic reaction
Write word equation for the following molecular equation:
AgN03 + HCI → HNO3 + AgCl ↓
Word equation:
State whether AgCl is soluble or insoluble in HN03.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Heat energy
Representation of the results of a chemical change – is a chemical equation.
For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓
Answer the following:
What is the indications of the arrow between the reactants and the products and of the arrow pointing downwards at the end.
An element X is trivalent. Write the balanced equation for the combustion of X in oxygen.
\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]
State what is a ‘balanced equation’.
\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]
State why the compound MnO2 is written above the arrow.
Write a balanced equation for the following word equation:
Aluminium + Oxygen → Aluminium oxide
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
PbO2 +4HCl → PbCl2 + H2O + Cl2
What are reactants? Explain with the help of example.
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Write the number of atoms of reactants and products.
The chemical equation Na2SO4(aq) + BaCl2(aq) → BaSO4(s)↓ + 2NaCl(aq) represents which of the following types of reaction?
