Asample of iron has a volume of 10.0 ml. the density of iron is 7.87 g/ml. which is the correct expression to calculate the mass of the sample using dimensional analysis? a. 10.0 ml x (7.87 g / 1 ml) b. 10.0 ml x (1 g / 7.87 ml) c. 10.0 ml x (1 ml / 7.87 g) d. 10.0 ml x (7.87 ml / 1 g)

a. 10.0 mL x (7.87 g / 1 mL)

Explanation:

Mass is density times volume.  Therefore:

m = 10.0 mL x (7.87 g / 1 mL)

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.