Sublimation
Chemistry ⇒ States of Matter
Sublimation starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Sublimation.
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See sample questions for grade 9
A mixture contains iodine and sand. How can you separate the iodine from the sand?
A scientist observes that a certain solid disappears when heated, leaving no liquid behind. What process is likely occurring?
A student heats a mixture of sand and ammonium chloride. After heating, only sand remains in the dish. Explain why.
Describe how you would demonstrate sublimation in a laboratory setting.
Describe the difference between sublimation and evaporation.
Describe the role of pressure in the sublimation process.
Describe what happens to the temperature of a substance during sublimation.
Explain why camphor is used in mothballs.
Explain why naphthalene balls become smaller over time when left in the open.
Explain why sublimation is considered a physical change.
Explain why sublimation is useful in separating mixtures containing a sublimable and a non-sublimable component.
Name two substances, other than dry ice, that commonly undergo sublimation.
What is sublimation in the context of states of matter?
