4. Using the values in Table One as a reference, what could be the identity of liquid X? density =volumeofliquidmassofliquid=1m7m= What other data would need to be collected in order to determine the true identity of X? 5. Why should you not inhale any of these liquids or spill on any of them on your skin? Is calcium sulfate soluble or insoluble? The ions involved are Ca2+ and SO42. Soluble Insoluble