Which of the following pairs are isotopes? a. Neon - 20 and Fluorine - 20
b. Aluminum - 28 and Phosphorus -30
c. Tron - 56 and Iron - 58

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m