A chemist observed bubbling and fizzing after adding an acid solution to a white powdery substance in a beaker. Which of the following can be
inferred?

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

How does the motion of particles in a gas change as the gas cools

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.