Comparing Prokaryotic and Eukaryotic Cells
Which structures are common to both prokaryotic and eukaryotic cells? Check all that apply.
vacuole
cell membrane
Golgi body
ribosome
cytoplasm
endoplasmic reticulum

The structures that are common to both prokaryotic and eukaryotic cells are  membrane, ribosomes, cytoplasm, and DNA. 

All cells have a membrane, ribosomes, cytoplasm, and DNA. However, Prokaryotic cells lack a nucleus and membrane bound structures while the eukaryotic cells have a nucleus and membrane bound structures called organelles. 

Explanation:

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.