which substance is an acid?\no lioh\no mg(oh)₂\no ch₃cooh\no nacl
which substance is an acid?\no lioh\no mg(oh)₂\no ch₃cooh\no nacl
Answer
Answer:
C. $CH_3COOH$
Explanation:
Step1: Recall acid - base definitions
Acids release $H^+$ in solution.
Step2: Analyze each option
$LiOH$ is a base as it releases $OH^-$ ($LiOH\rightarrow Li^+ + OH^-$). $Mg(OH)_2$ is a base as it releases $OH^-$ ($Mg(OH)_2\rightarrow Mg^{2 +}+2OH^-$). $CH_3COOH$ is an acid as it can release $H^+$ ($CH_3COOH\rightleftharpoons CH_3COO^-+H^+$). $NaCl$ is a salt formed from the reaction of an acid and a base ($HCl + NaOH\rightarrow NaCl + H_2O$).