Chapter 4 Acids and redox Flashcards
1
Q
What happens when an acid is dissolved in water?
A
An acid releases hydrogen ions as protons, H+ into the solution.
2
Q
What is a STRONG acid?
A
A strong acid releases ALL its hydrogen atoms into solution as H+ ions and COMPLETELY DISSOCIATES in aqueous solution.
3
Q
What is a WEAK acid?
A
A weak acid only releases a proportion of its available hydrogen atoms into solution as H+ ions. It PARTIALLY DISSOCIATES in aqueous solution.
4
Q
What is a BASE and what is an ALKALI?
A
A base neutralises an acid to form a salt.
An alkali is a base that dissolves in water releasing hydroxide (OH-) ions into the solution.
Therefore, all alkalis are bases, but not all bases are alkalis.
5
Q
A
