Advertisements
Advertisements
प्रश्न
Balance the equation stepwise.
NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + H2O(l)
Advertisements
उत्तर
NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + H2O(l)
Step1: Count the number of each atom in reactant side:
Na = 1
H = 3
O = 5
S = 1
Step 2: Count the number of each atom in product side:
Na = 2
H = 2
O = 5
S = 1
Step3: Then balance the number of each atom in an equation by multiplying reactant and product side with numeral value:
If we multiply NaOH by 2 in the reactant side and H2O by 2 in the product side, then number of atoms in product and reactant side gets balance.
2NaOH(aq) + H2SO4(aq) → Na2SO4(aq) +2H2O(l)
APPEARS IN
संबंधित प्रश्न
Write a complete balanced equation for the following reaction:
\[\ce{Sulphur dioxide (gas) + Oxygen (gas) -> Sulphur trioxide (gas)}\]
Balance the following equation:
\[\ce{Al2(SO4)3 + NaOH -> Al(OH)3 + Na2SO4}\]
Balance the following equation:
\[\ce{HNO3 + Ca(OH)2 -> Ca(NO3)2 + H2O}\]
Balance the following equation:
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Chemical equations are balanced to satisfy the law of ______.
Balance the following chemical equation:
\[\ce{C + CO2 -> CO}\]
Write the balanced equation for the following reaction, and add the state symbol:
Sodium hydroxide reacts with sulphuric acid to produce sodium sulphate and water.
Potassium chlorate (KClO3) on heating forms potassium chloride and oxygen. Write a balanced equation for this reaction and indicate the evolution of gas.
Give one example of an endothermic reaction.
The chemical equations are balanced to satisfy one of the following laws in chemical reactions. This law is known as:
Name the type of chemical reaction shown by the following equation:
Fe + CuSO4 → FeSO4 +Cu
What is a chemical equation?
Write word equation for the following skeletal equation:
\[\ce{AgBr -> Ag + Br2}\]
Balance the following equation. Also name the products formed.
\[\ce{Ag + S -> Ag2S}\]
Write your observation and name the product when ron nails are added to an aqueous solution of copper sulphate.
Raisins are wiped off gently before final weighing with the help of
The step(s) necessary for determining the percentage of water absorbed by raisins is/are:
Write the chemical equation for the following word equation and balance them.
Magnesium + Sulphuric acid → Magnesium sulphate + Hydrogen
Balance the following equation:
P + HNO3 → NO2 + H2O + H3PO4
What information does the following chemical equation convey?
Zn + H2SO4 → ZnSO4+ H2
Write the balanced chemical equation of the following reaction.
ammonia + oxygen → nitric oxide + water
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of salt formed.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the mass of salt formed.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the mass of chlorine gas formed.
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.
Write word equation for the following molecular equation:
AgN03 + HCI → HNO3 + AgCl ↓
Word equation:
State whether AgCl is soluble or insoluble in HN03.
Write word equation for the following molecular equation:
CaO + H20 → Ca (OH)2 + Δ
Word equation:
State why [+ Δ ] is not written in the reaction, if ZnO reacts with H2O.
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.
\[\ce{C +2S -> CS2}\]
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Catalyst
Give word equation for the following chemical reaction and give the names of the product formed.
ZnCO3 → ZnO + CO2
An element X is trivalent. Write the balanced equation for the combustion of X in oxygen.
Balance the following simple equation:
ZnS + O2 → ZnO + SO2
Balance the following simple equation:
FeCl2 + Cl2 → FeCl3
Balance the following simple equation:
KBr + Cl2 → KCl + Br2
Balance the following simple equation:
CaO + HCl → CaCl2 + H2O
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
Fe2O3 + 2H2 → 2Fe + 3H2O
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Balance the equation with proper coefficient and rewrite the equation.
Which of the following is not a physical change?
