which product contains a strong base that would most likely completely dissolve in water?\no drain…

Brief Explanations:

Drain - cleaner often contains strong bases like sodium hydroxide which are highly soluble in water. Ammonia is a weak base. Baking soda (sodium bicarbonate) is a weak base and an antacid is usually a weak - base compound. Strong bases like those in drain - cleaner dissociate completely in water.

Answer:

drain cleaner