Experiment 3

REDOX 1 : Metal Displacement

CRITERIA : Observation

Directions :
Obtain 4 metals . Copper , Magnesium , Calcium and Zinc
Prepare aqueous solutions of the nitrates of the metals .
Half fill 3 boiling tubes with each of the four solutions i.e.
12 tubes in total .
Place small amounts of each metal in a solution other than its own .
Leave overnight . Observe the next day .



MARK SCHEME
Statement of Hypothesis			2 mks
Aim						1 mk
Apparatus & Material			3 mks
Method					4 mks
	Logical sequence
	Language
	Steps
	Tense
Variables					2 mks
Data						3 mks
	All data
	Missing 1 essential
	Missing 2 or more essential
Predicted Results				2mks
Limitations / Assumptions / 		3 mks
Sources of Errors