🧫 10. Acids and Alkalis Flashcards
(11 cards)
1
Q
What pH value do acids have?
A
Less than 7.
2
Q
What pH value do alkalis have?
A
More than 7.
3
Q
What is the pH of a neutral solution?
A
7
4
Q
What is made in a neutralization reaction
A
Salt and water.
5
Q
What colour does litmus turn in an acid?
A
Red
6
Q
What colour does litmus turn in an alkali?
A
Blue
7
Q
What does pH measure?
A
How acidic or alkaline a solution is.
8
Q
What is an indicator?
A
A substance that changes colour to show whether something is an acid or alkali.
9
Q
What colour does universal indicator turn in a strong acid?
A
Red
10
Q
What colour does universal indicator turn in a strong alkali?
A
Purple
11
Q
A
