Question

In the given equation Ca(OH) 2 ​ +2HCl→CaCl 2 ​ +2H 2 ​ O, which of the following is true? a) Ca(OH) 2 Ca(OH) 2 ​ is the base and CaCl 2 CaCl 2 ​ is the salt. b) Ca(OH) 2 Ca(OH) 2 ​ is the acid and CaCl 2 CaCl 2 ​ is the salt. c) HCl HCl is the acid and Ca(OH) 2 Ca(OH) 2 ​ is the salt. d) HCl HCl is the base and Ca(OH) 2 Ca(OH) 2 ​ is the salt.

Answer 1

The correct statement regarding the chemical equation is that Ca(OH)2 is the base and CaCl2 is the salt from the reaction between calcium hydroxide and hydrochloric acid.

Step-by-step explanation:

In the chemical equation Ca(OH)2 + 2HCl → CaCl2 + 2H2O, the substance Ca(OH)2 (calcium hydroxide) acts as the base, as it provides OH− (hydroxide ions) when dissolved in water. The substance HCl (hydrochloric acid) is the acid as it provides H+ (hydrogen ions) in the solution. The product CaCl2 (calcium chloride) is the salt formed from the reaction, which is a combination of the cations from the base (Ca2+) and the anions from the acid (Cl−). Therefore, the correct statement is (a) Ca(OH)2 is the base and CaCl2 is the salt.

Learn more about Acid-Base Neutralization