Question

Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine ➜ Hydrogen Chloride. (ii) Barium chloride + Aluminium sulphate ➜ Barium sulphate + Aluminium chloride. (iii) Sodium + Water ➜ Sodium hydroxide + Hydrogen.​

Answer 1

Answer:

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Given:-

• Here given some chemical reactions

To find :-

• We should balence the chemical reactions.

Explanation :-

1)H2+Cl2=HCl

• Now balancing the chemical reaction

• H2+Cl2=2HCl.

2) BaCl2+Al2SO4=BaSO4+Al2Cl2

• Balancing the chemical reaction

• 3BaCl2+Al2(SO4)3=3BaSO4+2AlCl3.

3)Na+H2O=Na (OH)2+H2

• Balancing the chemical reaction

• 2Na +2H2O=2Na (0H)2+H2

Hope it helps u mate .

Thank you .

Answer 2

Number (i) :-

The skeletal chemical equation is :-

H₂ + Cl₂ → HCl

From the skeletal equation, we can understand that before reaction, there are two atoms of 'Hydrogen' and 'Chlorine respectively'.

So, the equation will be balanced if we multiply "HCl" with 2 .

H₂ + Cl₂ → 2HCl [balanced]

Number (ii) :-

The skeletal chemical equation is :-

BaCl₂ + Al₂(SO₄)₃ → BaSO₄ + AlCl₃

Number of atoms before reaction :-

Ba = 1 ; Cl = 2 ; Al = 2 ; S = 3 ; O = 12

Number of atoms after reaction :-

Ba = 1 ; Cl = 3 ; Al = 1 ; S = 1 ; O = 4

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On balancing the skeletal equation, using hit and trial method, we get it as :-

3BaCl₂ + Al₂(SO₄)₃ → 3BaSO₄ + 2AlCl₃

[balanced]

Number (iii) :-

The skeletal chemical equation is :-

Na + H₂O → NaOH + H₂

If we compare both the reactant and product part in the equation, we find that only "Hydrogen is unbalanecd" .

By hit and trial, we will get the balanecd equation if with multiply "Na" , "H₂O" and "NaOH" with 2 .

2Na + 2H₂O → 2NaOH + H₂ [balanced] .