Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
4 Cards in this Set
- Front
- Back
|
What is a pH scale? |
A pH scale is used to describe how acidic or alkaline a substance is |
|
|
How do we recognise which substance is an acid or alkali? |
By using Universal indicators, as it takes on a colour based on the pH of the substance its mixed with |
|
|
What colour is an acid on the pH scale? |
Acids on the pH scale are strong red |
|
|
What colour is an alkali on the pH scale? |
Alkalis on the pH scale are dark purple |
