chemical experiment 💥

Aim: To find out what happens when I mix chemicals together. 

Equipment:
test tubes
lead nitrate 
 potassium iodine
copper nitrate 
 ammonium hydrate
sodium hydroxide 
 silver nitrate
 iron chloride solution 
potassium thiocyanate


Method:
Mix together 

lead nitrate + potassium iodine

copper nitrate + ammonium hydrate


sodium hydroxide + silver nitrate

 iron chloride solution + potassium thiocyanate


Results:


 I mixed a clear colourless solution of lead nitrate and three drops of (a clear colourless) potassium iodide It turned into a yellow precipitate. It then made clumps of powder-like substance.

( blue and colourless)

I mixed a clear light blue solution of copper nitrate with three drops of a clear colourless solution of ammonium hydroxide.  When it reacted, it made a cloudy light blue solid (this is called a precipitate). When I added more ammonium hydroxide, it turned into a dark blue solution.

I mixed sodium hydroxide with three drops of silver nitrate  together and It made a chocolate brown colour and then it precipitated together.

  I mixed Iron chloride with three drops of potassium thiocyanate and It turned into red blood-like substance. This solution did not precipitate.














Discussion:

When two solutions are mixed and a precipitate forms, a precipitate is an insoluble solid.  If the precipitate then dissolves into a new solution, this new product is called a complex ion. A precipitate is when a liquid turns into a solid.