Directions: Assign oxidation numbers to all atoms in the following equations, write each half reaction, and then identify which element is oxidized and which is reduced.
Al + Cu+2→ Al+3 + Cu
Oxidized:
Reduced:
Oxidized half-reaction:
Reduced half-reaction:

Iknow #2 is d. i just need to know why

When would a bouncy ball have the most potential energy

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.