science
posted by marshall .
A substance has a mass of 12.5 grams and a volume of 9.8 ml.Will the object sink or float in water?

Vo = 9.8mL * 1cm^3/mL = 9.8 cm^3 = Vol.of the object.
Do = 12.5g/9.8cm^3=1.28 g/cm^3.=Density
of the object.
Density of water = 1 g/cm^3. Therefore,
the object will sink; because its' density is greater than the density of
water.