Question

question 9 of 10 which of the following is a strong base? a. caco₃ (calcium carbonate) b. naoh (sodium hydroxide) c. nh₃ (ammonia) d. h₂o (water)

Explanation:

A strong base completely dissociates in water to release hydroxide ions ($OH^-$). Calcium carbonate ($CaCO_3$) is a salt. Ammonia ($NH_3$) is a weak base. Water ($H_2O$) is amphoteric. Sodium hydroxide ($NaOH$) completely dissociates into $Na^+$ and $OH^-$ in water, making it a strong base.

Answer:

B. NaOH (sodium hydroxide)