C4 - Chemical Changes Flashcards
1
Q
Acid + Metal = ?
A
Salt + Hydrogen
2
Q
Acid + Metal Oxide = ?
A
Salt + Water
3
Q
Acid + Metal Hydroxide = ?
A
Salt + Water
4
Q
Acid + Metal Base = ?
A
Salt + Water
5
Q
Acid + Metal Carbonate = ?
A
Salt + Water + Carbon Dioxide
6
Q
what does OILRIG stand for
A
reaction types:
Oxygen
Is
Loss
Reduction
Is
Gain
7
Q
what does PANIC stand for
A
to remember what the anodes are called:
Positive
Anode
Negative
Is
Cathode
8
Q
What does each pH mean:
pH 1
pH 7
pH 14
A
pH 1 = very acidic (hydrochloric acid)
pH 7 = neutral (water)
pH 14 = very alkaline (sodium hydroxide)
9
Q
ions responsible for acidity and alkalinity:
A
acidity: h⁺ (hydrogen)
alkalinity: HO⁻ (hydroxide)
10
Q
neutralisation equation:
A
H⁺ + OH⁻ = H₂O
11
Q
A
