TEST_DE_CHEM_4.4_Electrochemistry

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In electrochemical cells, __________.

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What do the half-reactions in an electrochemical cell represent?

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Given the following equation describing a voltaic cell, describe the path of electron flow in the cell. Mg + Zn2+ -> Mg2+ + Zn (Eo=+1.61V)

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The following equation shows the net reaction taking place in a voltaic cell. Identify the substance that is oxidized and the substance that is reduced.
Zn + Br2 -> Zn2+ + 2Br- (Eo = +1.85V)

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Which of the following equations represents the decomposition of a chemical compound via an electrolytic reaction?

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An anion is a negative ion, as it contains more electrons than protons.

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Cell _______ is a measure of the amount of electricity that a chemical battery or cell can produce (measured in voltage)

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In an electrolytic cell, electric energy is used to cause a __________ chemical reaction. In a voltaic cell, a __________ chemical reaction is used to convert chemical energy into electrical energy.

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_______ is the process of using electricity to cause a chemical reaction that would not occur spontaneously

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An ion is a charged atom or group of atoms formed by the addition or removal of one or more electrons. For example, when a sodium atom donates an electron, its net charge becomes __________, and it forms a sodium ion. Similarly, when a chlorine atom gains an electron, its net charge becomes __________, and it forms chloride ion.

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Two half-cells connected using a salt bridge make a voltaic cell. Oxidation takes place in one half-cell and reduction in the other. This oxidation-reduction reaction triggers the flow of _______  and generates an electric current.

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A _______  reaction is one that involves the transfer of one or more electrons from one species to another.

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This is an example of a(n) __________  cell.

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In your lab, you didn't use a salt bridge with metallic salt solutions. What did you use?

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In your lab, the electrons were flowing from the __________.

What do the half-reactions in an electrochemical cell represent?

Given the following equation describing a voltaic cell, describe the path of electron flow in the cell. Mg + Zn2+ -> Mg2+ + Zn (Eo=+1.61V)

The following equation shows the net reaction taking place in a voltaic cell. Identify the substance that is oxidized and the substance that is reduced.Zn + Br2 -> Zn2+ + 2Br- (Eo = +1.85V)

Which of the following equations represents the decomposition of a chemical compound via an electrolytic reaction?

An anion is a negative ion, as it contains more electrons than protons.

In your lab, you didn't use a salt bridge with metallic salt solutions. What did you use?

The following equation shows the net reaction taking place in a voltaic cell. Identify the substance that is oxidized and the substance that is reduced.
Zn + Br2 -> Zn2+ + 2Br- (Eo = +1.85V)