How Many Grams of Cu Are Obtained by Passing a Current

question 78

Multiple Choice

How many grams of Cu are obtained by passing a current of 12 A through a solution of CuSO₄ for 15 minutes?

• A)0.016
• B)3.6
• C)7.1
• D)14
• E)1.8

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Definitions:

Oxidation Number

An indicator of how much an atom in a substance has been oxidized, shown by the quantity of electrons it has either gained or lost.

Reaction

A reaction involves the transformation of one or more substances into different substances through the breaking and forming of chemical bonds.

Exothermic

An exothermic reaction is a chemical reaction that releases heat and energy to its surroundings.

Activation Energy

Activation energy is the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.