2.3 The following unbalanced reaction produces 120 g of \( \mathrm{PF}_{3} \) and has a \( 78.1 \% \) yield. \[ P_{4}(s)+F_{2}(g) \rightarrow P F_{3}(g) \] 2.3.1 Write a balanced equation for this reaction. 2.3.2 Calculate the theoretical yield of \( \mathrm{PF}_{3} \) (1) 2.3.3 Calculate the mass of \( \mathrm{F}_{2} \) needed for this reaction.

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

Based on your worksheet results, please match the following: [he molecular shape of NH 3 is [Choose ] [Choose ] [Choose ] [Che molecular shape of BF3 is [Choose] The molecular shape of PF3 is

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 the molecule(s) that 1) its molecular shape is different from its electron group shape, and/or 2) the central bonds are not identical. NH3 BF3 PFF PF3

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