2.2 A 9.780 g gaseous mixture contains ethane \( \left(\mathrm{C}_{2} \mathrm{H}_{6}\right) \) and propane \( \left(\mathrm{C}_{3} \mathrm{H}_{8}\right) \). Complete combustion of the mixture requires 1.120 moles of oxygen gas to form carbon dioxide and water. 2.2 .1 Write balanced equations for the two reactions. 2.20 (2) Calculate the mass of ethane in the mixture.

Please select polar molecule(s) from the following. \( \square \mathrm{CCl} 4 \) \( \square \mathrm{CHCl} 3 \) \( \square \mathrm{CO} 3 \) CO 2

Please select the molecule(s) with double bond(s) from the following. \( \mathrm{CCl}^{2} \) CHCl 3 CO 3 H 2 O None

There are different types of food coloring available in most grocery stores- one that is water-based, and one that is oil-based. The oil-based food coloring works best in chocolates, in fry-oil to color fried foods, and in food with high butter contents. Based off of this information and knowing that substances of like polarity mix readily with one another, which food coloring is more polar (water-based or oil-based)? Which food coloring is less polar (or even nonpolar)? Water-based [Choose ]

Please select polar molecule(s) from the following. NH3 BF3 PF5 PF3

Based on your worksheet results, please match the following: The electron group geometry of NH 3 is The electron group geometry of BF 3 is [Choose ] The electron group geometry of \( \mathrm{PF5} \) is [Choose ] [Choose ] electron group geometry of SF4 is geometry of PF 3 is [Choose ]