Question

. Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. Why do ice cubes inside a freezer tend to shrink over time?

A- The ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.
B- The ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
C- The ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.
D- The ice dissolves oxygen from the air, forming a denser crystalline matrix.

Answer 1

i put C but im not sure if thats right

Answer 2

@Preetha

Answer 3

why is this one yellow

Answer 4

ice is frozen water. It does not react chemically in your freezer. But ice is water molecules, and they can escape into the air (this is called sublimation), and land somewhere else in the freezer (as ice crystals)

Answer 5

so B right

Answer 6

\(\color{#0cbb34}{\text{Originally Posted by}}\) @ZootedYoungin
why is this one yellow
\(\color{#0cbb34}{\text{End of Quote}}\)
Because she asked help from Qualified Helpers. The yellow makes the QH's questions noticeable. :)

Answer 7

Isn't this the math section? @phebe

Answer 8

Maybe we don't have qualified helpers in the science sections.

Answer 9

Yeah, we don't. :P

Answer 10

The Qualified Helpers section is only available for Math.
However, Preetha mentioned in OpenStudy Feedback that the Qualified Helpers program is on hold. http://openstudy.com/study#/updates/57729630e4b0053f85ff98a9

Answer 11

escuse me i need some help may you please check out my profile question

Answer 12

not only math
http://openstudy.com/study#/groups/Chemistry

Answer 13

3

Answer 14

i think its B