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Use Table 6.3 or Appendix B to write a balanced formation equation at standard conditions for each of the following compounds: (b) SiF₄;



Answer :

Balanced formation equation at standard conditions Si (s) + 2F₂ (g) → SiF₄ (s)   [ΔH° (Si (s)) = 0 and ΔH° (F₂ (g)) = 0)

What is Chemical Reaction ?

A chemical reaction is a process in which chemical bonds between atoms to break and reorganize, to form a other new substances.

The chemical reaction for SiF₄ is

Si (s) + F₂ (g) → SiF₄ (s)

Reactant Side    Product Side

Si = 1                     Si = 1

F = 2                     F = 4

In the reactant side there are 2F atoms and in the product side 4F atoms. So multiply by 2 in the reactant side to balance F atoms.

Si (s) + 2F₂ (g) → SiF₄ (s)

Reactant Side    Product Side

Si = 1                     Si = 1

F = 4                     F = 4

The above equation is now balanced.

Now, write the balanced formation equation at standard conditions

Si (s) + 2F₂ (g) → SiF₄ (s)   [ΔH° (Si (s)) = 0 and ΔH° (F₂ (g)) = 0)

Thus from the above conclusion we can say that Balanced formation equation at standard conditions Si (s) + 2F₂ (g) → SiF₄ (s)   [ΔH° (Si (s)) = 0 and ΔH° (F₂ (g)) = 0)

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