+2 or +1 (For copper ion)
CuO for Cupric Oxide and Cu2O for Cuprous Oxide (copper II and copper I)
A copper pipe is a compound, as it is made up of only one type of element - copper. It is not a mixture, which is made up of two or more different substances physically combined.
There are two different copper oxide formula's:2Cu + O2 -> 2CuO (black Copper(II) oxide)or4Cu + O2 -> 2Cu2O (red Copper(I) oxide)
CuBr - cuprous bromide or CuBr2 - cupric bromide
Copper sulfate has CuSO4 as its formula. Copper sulfate is also written copper (II) sulfate.
Copper 2+ and 1+ are the main ones. 3+ and 4+ also exist.
Attract
different poles have different charges, and different charges are attracted to each other
I can't be sure of exactly what you mean when you say "different". -- The two objects attract each other if their charges have opposite signs. -- They repel each other if their charges both have the same sign. These statements are both true whether or not the charges on the two objects have the same or different magnitudes.
The copper armature refers to the two principle electrical components of an electromechanical machine.
CuO for Cupric Oxide and Cu2O for Cuprous Oxide (copper II and copper I)
Unlike charges refer to two objects or particles that have different electric charges. In the context of electricity, unlike charges attract each other, with positive and negative charges being examples of unlike charges.
Generally +1 or +2.
Two equal charges will repel one another. Two different charges (i.e., a positive and a negative charge) will attract one another.
If two objects have different charges, they will either attract or repel each other. Oppositely charged objects will attract each other (positive and negative), while like charges will repel each other (two positives or two negatives). This is due to the electrostatic force between the charges.
Chromium cannot be directly converted to copper. They are different elements with different atomic numbers and properties. You would need a chemical reaction involving copper ions to produce copper from chromium.
the different types of charges are positive and negative charges