Video Transcript
You may see this hazard pictogram
on the side of a bottle of concentrated acid. What does it mean? (A) Burning, (B) corrosive, (C)
irritant, (D) harmful, (E) toxic.
We encounter lots of acids in our
everyday lives. Lemons, vinegar, yogurt, and
batteries all contain acids. While some acids are harmless,
other acids, particularly concentrated acids that we might use in the laboratory,
must be handled with caution because they can cause damage to skin and other
materials. These concentrated acids often have
hazard pictograms written on their label, like the one shown. This pictogram shows that when the
substance is poured on a material or human skin, it can cause damage. This pictogram indicates that the
substance is corrosive.
A substance that is corrosive has
high reactivity that causes damage upon contact with other materials. Some other hazard pictograms that
we might encounter warn us if a chemical is an irritant, toxic, a health hazard, or
flammable.
In conclusion, the hazard pictogram
shown that often appears on the side of a bottle of concentrated acid means that the
substance is corrosive, answer choice (B).
