Unit 1: Getting Ready for Chemistry



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_____15. I can balance a redox reaction.

Given the reaction:
_____Cl2(g) + _____Fe2+(aq) -----> _____Fe(s) + _____Cl-(aq)
When the equation is correctly balanced using smallest whole numbers, the coefficient of Cl- will be

A) 1 B) 2 C) 6 D) 7





_____16. I can identify a redox reaction from a list of chemical reactions.



_____17. From a list of given list of elements, I can determine which element is most active.

Which of the following elements is most likely to react?
A) Cu

B) Al


C) Li

D) Mg




_____18. I can state the two types of electrochemical cells.

The two types of electrochemical cells are:
___voltaic_____ and ______electrolytic_________


_____19. I can compare the two types of electrochemical cells in terms of: components, location of oxidation, location of reduction, direction of electron flow, conversion between electrical and chemical energy, and spontaneity of reaction.




Voltaic

Electrolytic

Components

salt bridge

anode

cathode


electrolyte


power supply



anode

cathode


electrolyte

Oxidation occurs at the


anode

anode

Reduction occurs at the

cathode

cathode

Electrons flow from



anode to cathode

anode to cathode

Energy conversion that occurs in this cell


chemical energy is converted to electrical energy

electrical energy is converted to chemical energy

Is this reaction spontaneous or does it require an outside power source to happen?

spontaneous

requires and outside power source


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