Answer:
The density is:
[tex]D=7.8\frac{g}{mL}[/tex]
Explanation:
We have the mass and the volume of steel,
[tex]m=156g\\V= 20 mL[/tex]
The density formula is:
[tex]D=\frac{m}{V}[/tex](1)
We can replace the mass and the volume in the equation (1) to find the density:
[tex]D=\frac{156g}{20mL}\\ D= 7.8 \frac{g}{mL}[/tex]
