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Electrolysis Questions and Correct
Answers/ Latest Update / Already
Graded
what are the state symbols for solids, liquids, gases and aqueous
solutions?
Ans: s , l , g , aq
what is electrolysis?
Ans: a chemical reaction in which an ionic liquid is decomposed into
new substances using an electrical current. it is a flow of charge of charge
produced by moving ions and ions are discharged at the electrodes
What is electrical current?
Ans: the flow of electrons or ions
Why do covalent compounds not conduct electricity?
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Ans: because covalent compounds only contain neutral atoms and
contain no free electrons.
In which form do ionic compounds conduct electricity?
Ans: Molten
Why are ionic compounds only conductive when molten?
Ans: Because the ions are free to move and can therefore carry
electrical charge
what is an electrolyte?
Ans: a liquid that conducts electricity
What is an experiment to distinguish between electrolytes and
nonelectrolytes?
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Ans: To be an electrolyte, a substance must be able to conduct
electricity. To test for conductivity, include a sample of the substance in a
circuit that contains a source of direct current (eg a cell or power pack)
and a bulb or an ammeter. If a current flows through the substance when
it is molten or dissolved, it is an electrolyte.
what are nonelectrolytes?
Ans: Nonelectrolytes do not conduct electricity.
what is the formation of new substances when ionic compounds
conduct electricity called?
Ans: Electrolysis
what happens when you pass an electric current through an ionic
substance that's molten or in solution?
Ans: the substance will break down into new substances. This is called
electrolysis
Electrolysis Questions and Correct
Answers/ Latest Update / Already
Graded
what are the state symbols for solids, liquids, gases and aqueous
solutions?
Ans: s , l , g , aq
what is electrolysis?
Ans: a chemical reaction in which an ionic liquid is decomposed into
new substances using an electrical current. it is a flow of charge of charge
produced by moving ions and ions are discharged at the electrodes
What is electrical current?
Ans: the flow of electrons or ions
Why do covalent compounds not conduct electricity?
,2 | Page
Ans: because covalent compounds only contain neutral atoms and
contain no free electrons.
In which form do ionic compounds conduct electricity?
Ans: Molten
Why are ionic compounds only conductive when molten?
Ans: Because the ions are free to move and can therefore carry
electrical charge
what is an electrolyte?
Ans: a liquid that conducts electricity
What is an experiment to distinguish between electrolytes and
nonelectrolytes?
, 3 | Page
Ans: To be an electrolyte, a substance must be able to conduct
electricity. To test for conductivity, include a sample of the substance in a
circuit that contains a source of direct current (eg a cell or power pack)
and a bulb or an ammeter. If a current flows through the substance when
it is molten or dissolved, it is an electrolyte.
what are nonelectrolytes?
Ans: Nonelectrolytes do not conduct electricity.
what is the formation of new substances when ionic compounds
conduct electricity called?
Ans: Electrolysis
what happens when you pass an electric current through an ionic
substance that's molten or in solution?
Ans: the substance will break down into new substances. This is called
electrolysis
