Answer :
First calculate density of the the metal (should equal to density of iron)
- Mass=18.2g
- Volume=2.56cm^3
[tex]\\ \bull\tt\longmapsto Density=\dfrac{Mass}{Volume}[/tex]
[tex]\\ \bull\tt\longmapsto Density=\dfrac{18.2}{2.56}[/tex]
[tex]\\ \bull\tt\longmapsto Density=7.1g/cm^3[/tex]
Metal is not iron
Mass=18.2g
Volume=2.56cm^3
=> Density =
[tex] = > \frac{mass}{volume} [/tex]
=> Density=
[tex] \frac{18.2}{2.56} [/tex]
=> Density=
[tex]7.1g/cm {}^{3}
[/tex]