View source for GCSE Chemistry Required Practical: Identifying Unknown Compounds

==Key Stage 4==
===Meaning===
Use a variety of [[chemical]] tests to identify the [[ion]]s in [[Ionic Compound|ionic compounds]].

===Method===
====Flame Test====
#Dip the end of an [[Inoculation Loop]] into [[concentration|concentrated]] [[Hydrochloric Acid]].
#Place the end of the [[Inoculation Loop]] into the powdered [[Metal Compound|metal compound]].
#Hold the end of the [[Inoculation Loop]] in a roaring blue [[Bunsen Burner]] flame.
#Observe and record the colour of the flame.
#Use the following table to identify the [[metal]] [[ion]].
{| class="wikitable"
|-
| style="height:20px; width:200px; text-align:center;" |'''Metal Ion'''
| style="height:20px; width:200px; text-align:center;" |'''Flame Colour'''
|-
| style="height:20px; width:200px; text-align:center;" |Lithium
| style="height:20px; width:200px; text-align:center;" |Red
|-
| style="height:20px; width:200px; text-align:center;" |Sodium
| style="height:20px; width:200px; text-align:center;" |Orange
|-
| style="height:20px; width:200px; text-align:center;" |Potassium
| style="height:20px; width:200px; text-align:center;" |Lilac (Purple)
|-
| style="height:20px; width:200px; text-align:center;" |Calcium
| style="height:20px; width:200px; text-align:center;" |Orange-red
|-
| style="height:20px; width:200px; text-align:center;" |Barium
| style="height:20px; width:200px; text-align:center;" |Brown-green
|-
| style="height:20px; width:200px; text-align:center;" |Copper
| style="height:20px; width:200px; text-align:center;" |Green-blue
|-
| style="height:20px; width:200px; text-align:center;" |Lead
| style="height:20px; width:200px; text-align:center;" |Blue
|}