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WorksheetsElectrolysis recap quiz
Total questions: 16
Worksheet time: 20mins
Substances that let electricity pass through them are called (a) ?
Metals can conduct electricity because......
the ions are free to move
none of the electrons are free to move
there are free electrons to move when voltage is applied
Sulfur does not conduct electricity because .......
the ions are not free to move.
because none of the electrons are free to move
Define electrolyte by completing the following sentence with two words.
Electrolyte is a liquid that __________ ____________ .
(a)
Define electrolysis by completing the following sentence using 3 words.
Electrolysis is the breakdown of ________ substance when ________ or in solution by passage of _____________ .
[write your answer as ______,______,________]
(a)
Which of the following is what makes up an electrolysis cell. You may select more than one options.
electrolyte
anode
cathode
battery/power supply
I carry current (e-) in and out of the liquid during electrolysis.
Who am I?
(a)
How can you tell which electrode is +ve?
it is connected to the -ve terminal of the battery
it is connected to the +ve terminal of the battery
A molten ionic compound is made up of a metal and a non-metal.
True
False
Sodium or Na in molten state becomes an ion Na+. Is Na+ a cation or anion.
cation
anion
Write the anion of NaCl.
(a)
Who will be attracted to the +ve electrode?
cation
anion
If a +ve ion is attracted to the -ve electrode. And sodium is an example of a metal. Can we say that a metal ion will always flow and be attracted to the cathode.
(a)
Which of the following conducts electricity?
you may select more than one option.
an iron rod
a solution of sodium chloride in water (aqueous solution)
an aqueous solution of sugar
melted sugar
mercury
Suggest 2 things you could do to potassium chloride to make it conduct?
Give an example of halide ions?
(a)
