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Which of the following equations represents the acid-base neutralization reaction between HBr and Sr(OH)₂?

a. HBr + Sr(OH)₂ → SrBr₂ + H(OH)₂
b. HBr + Sr(OH)₂ → SrBr + H₂O
c. HBr + Sr(OH)₂ → SrBr + H(OH)₂
d. HBr + Sr(OH)₂ → SrBr₂ + H₂O
e. HBr + Sr(OH)₂ → SrvBr + H₂O

Answer :

d. HBr + Sr(OH)₂ → SrBr₂ + H₂O is the correct equation representing the acid-base neutralization reaction between hydrobromic acid (HBr) and strontium hydroxide (Sr(OH)₂).

In a neutralization reaction, an acid reacts with a base to produce a salt and water. Hydrobromic acid (HBr) is a strong acid, and strontium hydroxide (Sr(OH)₂) is a strong base.

When these two substances react, the hydrogen ions (H⁺) from the acid combine with the hydroxide ions (OH⁻) from the base to form water (H₂O).

The remaining ions, bromide (Br⁻) from HBr and strontium (Sr²⁺) from Sr(OH)₂, combine to form the salt strontium bromide (SrBr₂). The balanced equation for this reaction, considering the stoichiometry, is:

2HBr + Sr(OH)₂ → SrBr₂ + 2H₂O

This equation shows that two moles of HBr react with one mole of Sr(OH)₂ to produce one mole of SrBr₂ and two moles of water, satisfying the requirement for both mass and charge balance. Thus, option d is correct.

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