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Periodic Classification Of Elements

Question
CBSEENSC10010562
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What does a balanced chemical equation convey to a chemist?

Solution

The following informations are conveyed:

(i) Formulae of substances taking part in chemical reaction i.e., reactants.

(ii) Formulae of substances produced in the reaction i.e., products.

(iii)The relative number of molecules of reactants and products.

(iv) The relative masses of reactants and products.

(v)The relative volumes of gaseous substances involved in the reaction.

Some More Questions From Periodic Classification of Elements Chapter

How would you justify that a chemical reaction has taken place in the following cases:
(i)    Burning of magnesium ribbon in air.
(ii)    Addition of lead nitrate solution to potassium iodide solution.
(iii)    Addition of dilute hydrochloric acid to zinc granules.

How do you show that respiration is a chemical change?

Why is it necessary to obtain a balanced chemical equation?

Balance the following skeleton equations:
(i)    KClO3 →KCl + O2
(ii)    Na2CO3 + HCl → NaCl + H2O + CO2
(iii)    CH4 + O2 → CO2 + H2O
(iv)    NaCl + H2SO4 → Na2SO4 + HCl
(v)    Fe + H2O → Fe3O4 + H2
(vi)    H2S + O2 → H2O + S
(vii)    H2 + N2 →NH3.

Balance the following chemical equations:
(i)    NaOH + H2SO4 → Na2SO4 + H2O
(ii)    HNO3 + Ca(OH)2 → Ca(N03)2 + H2 O
(iii)    FeCl2 + H2S → HCl + FeS 

What does a balanced chemical equation convey to a chemist?

list the limitations of chemical equation.

What are the essentials of a chemical equation?

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