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Which of the following metals reacts with water?
Which method of extraction is used to extract potassium from its ore?
Heating with carbon
Using a magnet
What is a metal ore?
Naturally occurring metal compound in rocks
A pure element found in rocks
The energy in an electrochemical cell comes from
An electrolyte is a conductive solution?
Which of the following metals can be extracted from its ore by heat alone?
Whioch of the following pairs of metals will give the LARGEST voltage?
Iron and Zinc
Potassium and Sodium
Magnesium and silver
Sodium and Lithium
Which of the following could be used as the electrolyte solution in an electrochemical cell?
Which of the following metals is found in its pure form?
What would happen to a silver ring if it was dropped into some acid?
It will react
Nothing will happen
It will catch fire