Question

A lab group was working and did not turn off their hot plate. They left their beaker on it with water boiling and a thermometer in the beaker. The water evaporated and the thermometer exploded.

a) Explain why it is important to always turn off the hot plate and to be sure it is cool before putting it away.
b) There are two beakers. One was just taken off the hot plate, while the other was sitting on the lab table. Can you tell which one is hot just by looking? Explain.

Answer 1

Answer:

It is always important to turn off the hot plate because objects around it can catch on fire, things could explode if something is left on it, or someone could get injured.

Yes, you can tell if the water is boiling or if there is steam in the beaker/condensation.

Hope that helps and have a great day!

Answer 2

Answer:

my answer for a is its important to turn off the hot plate because it will possibly burn or hurt someone who bumps into it or touch's it  

Explanation:

answer for b is that you can tell which ones hot because of the steam coming out of the beaker