Detective Chemistry
Test for water
cobalt chloride paper goes blue
Test for fat and observation:
Shake with ethanol - cloudy precipitate
Kinetic Energy equation
1/2 m v^2
Metal + Acid --> ?
Salt + Hydrogen
Mccann's age
32
Flame test colour of potassium and copper( 2+)
purple, green/ blue
Test for starches and result
Iodine solution - blue black
Transformer eqn
Np/Ns = Vp/Vs
What are the diatomic molecules?
hydrogen, helium, halides, oxygen, nitrogen
How many years at UWCSEA?
8
What is the name of the precipitate formed in the test for CO2
Calcium Carbonate
Test for reducing sugars
Benedicts/ green yellow orange
Area under a velocity time graph =
Distance covered
Acid + carbonate -->
Salt + water + carbon dioxide
What is my hometown?
Viking/ university city
Durham
Precipitate tests for metal ions use which two solutions..
Ammonia and sodium hydroxide
Test for protein
Biuret - purple colour
Two equations for power:
P = IV
P = E/t
Electrolysis of aqueous NaCl
What forms at Cathode?
What forms at Anode?
Cathode: Hydrogen
Andode: Chlorine
Who is my favourite history teacher
Nicky V
Physical tests to identify water (x2)
Boiling / melting point
Density at room temp
refractive index
Name the types of teeth
molar, pre molar, incisor, canine
Three equations for energy:
Work done:
Kinetic Energy:
GPE:
Uses of Chlorine
Make plastic / PVC / make bleach / sterilising
Which head of grade do i fear the most
Markham