When heating a liquid in a test tube, which of the following safety precautions should you take? A.
Wear latex gloves.
B.
Heat the test tube on an open flame if possible.
C.
Put a tight lid on the test tube.
D.
Angle the test tube away from yourself and others.

h let me think

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter