Homework Help: chemistry

Posted by krystal on Tuesday, February 14, 2012 at 10:00pm.

Aluminum metal reacts with oxygen gas (O2) to form aluminum oxide.

a. Write a balanced equation for this oxidation-reduction reaction. (In this problem you need not worry about the physical state of the reactants or product.)

2Al+3O2=2Al2O3

b. which reactant is oxidized?

O2

c. Which reactant is being reduced?

Al

d. What is the oxidizing agent?

Al

e. What is the reducing agent?

O2

chemistry - DrBob222, Tuesday, February 14, 2012 at 10:07pm
None are right including the equation. it isn't balanced.
Oxidation is the loss of electrons.
Reduction is the gain of electrons.
chemistry - DrBob222, Tuesday, February 14, 2012 at 10:10pm
This site is a good redox site.

http://www.chemteam.info/Redox/Redox.html
chemistry - krystal, Tuesday, February 14, 2012 at 10:39pm
4Al+3O2=2Al2O3

O2 is being oxidized

Al is being reduced

Al is the oxidizing agent

O2 is the reducing agent
chemistry - DrBob222, Tuesday, February 14, 2012 at 11:04pm
Second time through is right on all.

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