Your best friend had a bunkbed. You move form the bottom bunk to the top bunk and notice that the air is warmer. The warmer air rises because of . 1 conduction
2 convection
3 radiation

Embryos of different species look very similar, which shows that the organisms share a ancestor.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

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.