To predict the products of the reaction between hydrobromic acid (HBr) and calcium hydroxide (Ca(OH)₂), we'll consider a neutralization reaction, where an acid reacts with a base to produce a salt and water.
The balanced chemical equation is:
\[ 2 \text{HBr} + \text{Ca(OH)}_2 \rightarrow \text{CaBr}_2 + 2 \text{H}_2\text{O} \]
Let's verify the products and the balance:
- HBr is a strong acid, so it dissociates into H⁺ and Br⁻.
- Ca(OH)₂ is a strong base, so it dissociates into Ca²⁺ and OH⁻.
- The H⁺ ions from the HBr will react with the OH⁻ ions from the Ca(OH)₂ to produce water (H₂O).
- The Ca²⁺ ions from the Ca(OH)₂ will react with the Br⁻ ions from the HBr to produce calcium bromide (CaBr₂).
Now, let's balance the equation:
On the reactants side:
- We have 2 HBr, providing 2 H⁺ and 2 Br⁻.
- We have 1 Ca(OH)₂, providing 1 Ca²⁺ and 2 OH⁻.
On the products side:
- We need 2 H⁺ (from HBr) to react with 2 OH⁻ (from Ca(OH)₂) to form 2 H₂O.
- The 1 Ca²⁺ will combine with 2 Br⁻ to form 1 CaBr₂.
Thus, the balanced equation is:
\[ 2 \text{HBr} + \text{Ca(OH)}_2 \rightarrow \text{CaBr}_2 + 2 \text{H}_2\text{O} \]
No atoms are lost or gained, and the equation is balanced in terms of both the number of atoms and the charge.
Predict the products of the reaction below. That is, complete the right-hand side of the chemical equation. Be sure your equation is balanced.
HBr+Ca(OH)_2->
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