Scot has a 50 g sample of sandstone. the sandstone is formed by sedimentation, compaction, and cementation of 50-g of sand particles. based on this information, what can scot conclude?
a) mass is conserved in the rock cycle.
b) the structure of sand remains the same.
c) the sand retains its properties within sandstone
d) the volume of the parts is conserved in the rock cycle.

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.