1. How do you know that NO2 (with a negative charge 1) is an anion and not ionic compound?
2. What are the SI standard units for length and mass? Why ins't there a standard SI unit for volume?
chemistry - bobpursley, Monday, January 26, 2009 at 5:33pm
Compounds don't have charges.
meter, kilogram. The standard unit of volume is m^3