Hazard symbols warn about the dangers of a substance. Risk is the chance that a hazard will cause harm. Risk assessments describe how to reduce the risk of harm when carrying out an experiment.
Which statement about hazards and risks is correct?
A hazard is a potential problem. A risk is the likelihood that the problem will occur.
A risk is a potential problem. A hazard is the likelihood that the problem will occur.
A hazard and a risk are exactly the same thing.
Which symbol indicates a chemical that can potentially corrode skin?
Which symbol would suggest that the substance should be kept away from sources of heat?
Which symbol indicates a chemical that should be used in a fume cupboard?
Which hazard symbol is used for a substance that will help other things burn faster?
Which statement explains why diluting an acid reduces the hazard?
Diluting an acid makes it less likely to catch fire
Diluting the an acid makes it less corrosive
Diluting an acid means it will not be poisonous
What kind of substance should always be heated in a water bath, rather than by a Bunsen burner?
A corrosive substance
A toxic substance
A flammable substance
Why should you never eat or drink in a chemistry laboratory?
Because some chemicals are flammable
Because some chemicals can be toxic
Because some chemicals can affect your breathing
What hazard is associated with an oxidising chemical?
It could irritate the skin
It could make another substance burn more quickly
It could cause breathing difficulties
When would wearing protective gloves and eye protection be most appropriate?
When using corrosive substances
When using oxidising substances
When using flammable substances