When a solid substance disappears completely as a gas on heating; the substance is said to have undergone? by Sunday | Mar 19 | Chemistry JAMB | 0 comments A. Sublimation B. Crystallization C. Distillation D. Evaporation Correct Answer: Option A – Sublimation Users Also Read These:A copper cube weighs 0.25 N in air; 0.17N when…A heating coil rated 1000W is used to boil off…When a solid substance disappears completely as a…When a substance changes directly from the solid…The half life of a radioactive substance is 14 days.…