Unit 4-Chemical Changes- Acids and Alkalis Flashcards
1
Q
Metal + Oxygen –>
A
Metal + Oxygen –> Metal Oxide
2
Q
Reduction
A
Taking oxygen away
3
Q
Oxidation
A
Add oxygen
4
Q
Ions formed from metals?
A
Positive Ions
5
Q
Ions formed from non-metals?
A
Negative Ions
6
Q
Reactivity
A
Tendency to from positive ions
7
Q
Displacement
A
More reactive metals taking the place of less reactive metal in a compound
8
Q
Why can gold be found in the Earth as the metal itself?
A
It is unreactive
9
Q
Extraction of metals less reactive than carbon
A
Reduction
10
Q
Extraction of metals more reactive than carbon
A
Electrolysis
11
Q
Carbon + Oxygen –>
A
Carbon Dioxide or Carbon Monoxide
12
Q
Oxidation (electrons)
A
Loss of electrons
13
Q
Reduction (electrons)
A
Gaining electrons
14
Q
What does OILRIG stand for?
A
Oxidation Is Loss Reduction Is Gain (of electrons)
15
Q
What do the following state symbols mean? (s) (l) (g) (aq)
A
What do the following state symbols mean?
(s) - Solid
(l) - Liquid
(g) - Gas
(aq) - dissolved in water
