When ch3i molecules in the vapor state absorb 253.7 nm light they dissociate into methyl radicals and iodine atoms the energy required to rupture?

Find the mass in grams of 1.37x1020 particles of h3po4

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as