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प्रश्न
Chemical equations are balanced to satisfy the law of ______.
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उत्तर
Chemical equations are balanced to satisfy the law of conservation of mass.
Explanation:
Chemical equations are balanced to ensure that the total mass of the reactants equals the total mass of the products. This satisfies the law of conservation of mass, which states that atoms cannot be created or destroyed during a chemical reaction. Therefore, the exact same number of atoms for each element must exist on both sides of the equation.
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संबंधित प्रश्न
Translate the following statement into chemical equation and then balance it.
Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
Balance the following equation and add state symbols:
Zn + HCI → ZnCI2 + H2
The chemical reaction between quicklime and water is characterised by:
(a) evolution of hydrogen gas
(b) formation of slaked lime precipitate
(c) change in temperature of mixture
(d) change in colour of the product
Name the various types of chemical reactions.
Write symbolic representation for the following word equation and balance them :
Carbon + Oxygen → Carbon dioxide.
Write your observation and name the product when An aqueous solution of barium chloride is added to dilute sulphuric acid.
Balance the equation stepwise.
SO2(g) + H2S(aq) → S(s) + H2O(l)
Balance the following equation:
\[\ce{S + HNO3 -> H2SO4 + NO2 + H2O}\]
What information does the following chemical equation convey?
Zn + H2SO4 → ZnSO4+ H2
What is the valency of :
carbon in CH4
Write the balanced chemical equation of the following reaction.
aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen
Considering the relationship in the first pair, complete the second paie :
AgCI : White :: CuI2 : ___________
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:
Dilute hydrochloric acid to silver nitrate.
Name the following:
The silvery residue obtained on heating mercury [II] oxide.
Write word equation for the following chemical reaction given below. Also state the observation seen in the case.
NaCl + AgNo3 → AgCU ↓ + NaN03
Balance the following simple equation:
H2 + O2 → H2O
CaCO3 + 2HCl[dil.] → CaCl2 + H2O + CO2 [g]
State the information provided by the above chemical equation.
Write a balanced equation for the following word equation:
Potassium nitrate → Potassium nitrite + Oxygen
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
