What is the best reason for a student to remove a dangling bracelet when heating test tubes of acidic solutions in a hot-water bath in a chemistry lab?
Answer
A
to minimize the chance the bracelet pulling over a test tube, causing a spill
B
to prevent misreading the temperature of the bath on a thermometer
C
to reduce the risk of burns from heat conducted through the metal
D
to avoid reactions of the metal with gases in the lab