chemical changes Flashcards
(10 cards)
1
Q
oxidation in terms of electrons
A
the loss of electrons
2
Q
oxidation in terms of oxygen
A
the gain of oxygen
3
Q
reduction in terms of electrons
A
the gain of electrons
4
Q
reduction in terms of oxygen
A
the loss of oxygen
5
Q
what makes a strong acid
A
an acid which ionises completely when dissolved in water and created lots of H+ ions
6
Q
what makes a weak acid
A
an acid which does not ionise very much when dissolved in water and creates a lower concentration of H+ ions
7
Q
what is the Ph scale a measurement of?
A
The concentration of H+ ions a substance contains. The more H+ ions the lower the Ph
8
Q
what do acids form when dissolved in water?
A
H+ (hydrogen) ions
9
Q
what do
A
10
Q
A
