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4. Given the chemical formulas of the following compounds, name each compound and state the rules you used to determine each name.
• RbF
• CuO
• (NH4)2C2O4
(Note: C2O4– is called oxalate.)
Answer:

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Dauntless04

I am taking the same test! ;)

1. RbF --> Rubidium Fluoride

Change fluorine to fluoride

2. CuO --> Copper (II) Oxide

Change oxygen to oxide. Oxide has a charge of -2. Since no subscripts are written, it means they have the same opposite charge. So, we use Copper (II).

3. (NH₄)₂C₂O₄ --> Ammonium Oxalate

NH₄ is ammonia, but we change it to ammonium for poly atomic ions. 

I hope this helps!

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