Topics 3,4,5 - Acids, Metals & Fuels: Hazard Symbols, Acids And Alkalis Flashcards
1
Q
What does the hazard symbol mean which is a ‘X’ with a small ‘i’ on the right side of it?
A
Irritant. The chemical is not corrosive, but it can cause reddening or blistering of the skin.
2
Q
What do hazard symbols do?
A
Hazard symbols are found on chemical containers and tell you what the dangers of that chemical are.
3
Q
What is the word equation for any neutralisation reaction?
A
acid + base -> salt + water
4
Q
Where do acids, alkalis and neutral substances fit on the pH scale?
A
Acids have a pH less than 7. Alkalis have a pH greater than 7. Neutral substances have a pH of exactly 7.
5
Q
What does the hazard symbol mean that is circle with a flame on top?
A
Oxidising. The chemical provides oxygen which allows other materials to burn more fiercely.
