The EASIER it is for the metal atom to lose electrons the more reactive it is
1 of 30
Displacement
A more reactive metal will displace a less reactive metal
2 of 30
Ores
Rocks which contain these useful minerals (often oxides or sulphides)
3 of 30
Oxidation
Is the addition of oxygen to a substance
4 of 30
Reduction
Is the removal of oxygen from a substance
5 of 30
Redox Reaction
If oxidation and reduction happen together its called a redox reaction
6 of 30
OILRIG
Oxidation Is Loss of electrons Reduction Is Gain of electrons
7 of 30
Anode
Positive electrode
8 of 30
Cathode
Negative electrode
9 of 30
Electrolyte
The ionic compound dissolved/molten
10 of 30
Electrodes
Positively or Negatively charged probes sticking on the electrolyte
11 of 30
Aqueous solutions
There is metal and non-metal ions also there are H+ and OH- ions form the water
12 of 30
What is produced in Electrolysis of Aqueous Solutions?
At the NEGATIVE electrode, hydrogen is produced if the metal is more reactive than hydrogen. If the metal is less reactive then it will be formed instead
13 of 30
What is produced in Electrolysis of Aqueous Solutions?
At the POSITIVE electrode, oxygen is produced unless the solution contains halide ions, then instead the halogen is made
14 of 30
Halide
Halogens
15 of 30
Test for CHLORINE
bleaches damp litmus paper
16 of 30
Test for OXYGEN
relights a glowing splint
17 of 30
Test for HYDROGEN
Squeaky pop test
18 of 30
Neutralisation
Alkali's neutralize acids to make salts
19 of 30
Making Soluble Salts STEP ONE
React the acid with an insoluble substance to form the desired salt. Add this substance until it no longer reacts. This might need to be heated.
20 of 30
Making Soluble Salts STEP TWO
Filter off the left over metal/metal oxide/ metal hydroxide/metal carbonate
21 of 30
Making Soluble Salts STEP THREE
Heat the solution to evaporate some water until crystals start to form. Leave the solution to cool down- more crystals will form. Filter off the crystals and allow them to dry
22 of 30
Excess
When the amount of a reactant is greater than the amount that can react
23 of 30
Saturated Solution
a solution in which no more solute can dissolve at that temperature
24 of 30
End point
The moment when the indicator changes colour in a titration showing that the moles of acid and alkali are equal
25 of 30
Concordant
results that are very close together
26 of 30
Titration Equation
Concentraion + Number of moles DIVIDE BY the volume
27 of 30
Volume
Volume is in Decimeters cubed
28 of 30
Cm -> Dm
DIVIDE BY 1000
29 of 30
Concentration
Concentration is in mols per decimeter cubed
30 of 30
Other cards in this set
Card 2
Front
A more reactive metal will displace a less reactive metal
Back
Displacement
Card 3
Front
Rocks which contain these useful minerals (often oxides or sulphides)
Comments
Report