1. A sample of a hydrocarbon is burned completely and produces 22 g of CO2 and 27.0 g of H2O. The
empirical formula of the hydrocarbon is:

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98