Answer
See explanation
Work Step by Step
a. 1.0 kg of feathers and 1.0 kg of lead have the same mass: 1.0 kg.
b. 1.0 mL of mercury will have a greater mass than 1.0 mL of water because mercury is more dense than water:
1.0 mL $\times$ 13.6 g/mL= 14 g mercury
1.0 mL $\times$ 0.998 g/mL= 1 g water
c. 1.0 mL of gold and 19.3 mL of water have the same mass because
1.0 mL $\times$ 19.32 g/mL= 19.3 g gold
19.3 mL $\times$ 0.0998 g/mL= 19.3 g apa
d. 1.0 L of benzene has greater mass than 75 mL of copper because
75 mL $\times$ 8.96 g/mL= 670 g copper
1.0 L $\times$ 1000 mL/L $\times$ 0.880 g/mL= 880 g benzene
