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Mole Concept in Balanced Reaction

taking the ex...

Question

taking the example of the following reaction, explain what important info are conveyed by this balanced equation-
CaCO3(s) + 2HCl (aq) = CaCl2(aq) + H2O(l) +CO2(g)

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Solution

Since the no. of moles on reactant and product side are equal in the above chemical equation . Therefore it depicts Law of Conservation of mass.

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Similar questions

C a C O_{3} (s) + 2 H C l (a q) ⟶ C a C l_{2} (a q) + H_{2} C O_{3} (a q)

C a C O_{3} (s) + 2 H^{+} (a q) + 2 C l^{-} (a q) ⟶ [C a^{2 +} (a q) + 2 C l^{-} (a q)] + H_{2} C O_{3} (a q)

C a C O_{3} (s) + 2 H^{+} (a q) ⟶ C a^{2 +} (a q) + H_{2} C O_{3} (a q)

H_{2} C O_{3} (a q)

C O_{2} (g)

H_{2} O (l)

H_{2} C O_{3} ⟶ H_{2} O (l) + C O_{2} (g)

H_{2} C O_{3}

H C l

C a C O_{3} (s) + 2 H C l (a q) \to C a C l_{2} (a q) + C O_{2} (g) + H_{2} O (l)

C a C O_{3}

25

0.75

H C l

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H C l

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C a C O_{3} (s) + 2 H C l (a q) \to C a C l_{2} (a q) + C O_{2} (g) + H_{2} O (l)

C a C l_{2}

2 H_{2} O (l) ⟶ 2 H_{2} (g) + O_{2} (g)

N_{2} (g) + 3 H_{2} (g) ⟶ 2 N H_{3} (g)

C a C O_{3} (s) ⟶ C a O (s) + C O_{2} (g)

N H_{3} (g) + C O_{2} (g) + H_{2} O (l) ⟶ N H_{4} H C O_{3} (a q)

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N H_{4} H C O_{3}

H_{2} O (l)

\frac{y}{100}

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The following equations represent reactions used in some important metallurgical processes:

1. $F e_{3} O_{4} + C O (g) \to F e (l) + C O_{2} (g)$

2. $M g C O_{3} (s) + S i O_{2} (s) \to M g S i O_{3} (l) + C O_{2} (g)$

3. $A u (s) + C N^{-} (a q) + H_{2} O (l) + O_{2} (g) \to [A u (C N)_{2}]^{-} (a q) O H^{-} (a q)$

Which one (s) represent reduction to a free metal?

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