@ 4 77% 4:14 PM slcc.instructure.com ..1 T-Mobile Question 5 10 pts What happene

Question

@ 4 77% 4:14 PM slcc.instructure.com ..1 T-Mobile Question 5 10 pts What happened to the Bobby pin after heating with a Bunsen burner and allowing the pin to slowly cool in air? Account O it became brittle O it could no longer bend O it became a coll Courses Calendar there was no change Help D Question 6 10 pts What happened to the Bobby pin when it was quenched, or rapidly cooled with water after heating with a Bunsen burner? O it became brittle could no longer bend O it became a col there was no change D Question 7 10 pts What did you observe when the Bobby pin was quenched with water? the water changed color O iron carbide fell to the bottom of the cup the Bobby pin changed color O no change in the Bobby pin or water Question 8 10 pts

Explanation / Answer

Question 5

Slow heating after heat will rearrange atomic arrangment and make it soft relatively but as such no visivle change is observed.

Question 6:

Quenching or rapid cooling result in hardnening of pin due to sudden transfer of heat by water it becomes brittle now

Question 7

During quinching flakes of iron carbide fell to the cup due to sudden loss of heat metal start developing cracks which fell off in cup

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