A4 gram metal object displaces 2 ml of water in a graduated cylinder. what is the density of the metal object?

Density=mass/volume
Density= 4 g/2 mL/cm3
Density =2 g/cm3

(no3)⁻n has oxidation number x,o has oxidation number -2.(x*1 -2*3) charge of the nitrate ion, and we know that charge of the nitrate ion =-1.so,(x*1 -2*3) =-1x-6=-1x=+5answer a. +5.

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