7E Acids In Action Flashcards
1
Q
Corrosive def and description of symbol
A
Attack / wear down materials . A chemical in test tube being poured over hand resulting in part (chip)of hand missing
2
Q
How to make a dangerous chemical safe
A
Use smaller amounts or dilute it with water
3
Q
Dilute acid symbol and meaning
A
A triangle with a cross and classified as a irritant . Which means not corrosive but will sting and itch .
4
Q
Example of indicator and what colour it changes when it is acidic
A
Litmus and red
5
Q
Some substances which are neither acid or alkali are called
A
Neutral
6
Q
What is a universal indicator
A
A mixture of colours that gives a range of different colours depending on the strength of acid or allali
7
Q
Ph scale
A
1-3 Strong acid 4-6. Weak acid 7. Neutral 8-10. Weak alkali 11-14 strong alkali
8
Q
Acid and alkali is
A
A neutralisation reaction
