In his science class, Mr. Brown heats a small amount of iodine in a test tube. The iodine changes into a pink gas without changing into liquid. What is this process called? A.
condensation
B.
deposition
C.
evaporation
D.
melting
E.
sublimation

E.

sublimation

Explanation:

In his science class, Mr. Brown heats a small amount of iodine in a test tube. The iodine changes into a pink gas without changing into liquid. What is this process called?

A.

condensation

B.

deposition

C.

evaporation

D.

melting

E.

sublimation

When a substance sublimates it passes from a solid to a gas without first melting into a liquid.  In addition to iodine, both naphthalene (which makes moth balls) and carbon dioxide  (which makes dry ice) sublimate.

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