April was given 4 liquid substances to identify based on their densities. She measured the mass and volume of each substance and recorded her data in the table on the left. The data table on the right provides a list of known densities for common substances to compare.

April's Data
Known Densities
Substance Mass (g) Volume (mL)
Substance 1 5.00 5.00
Substance 2 680. 5.00
Substance 3 3.95 5.00
Substance 4 24.7 5.00
Substance Density (g/mL)
Mercury 136
Iodine 4.93
Water 1.00
Ethanol 0.789