Calculate the zn conc. of zn/zn++ // cl/cl- 0.1m emf=2.21v answers: a)0.1m b)0.2m c)0.05m d)0.15m!

The most efficient way to establish the best possible economizer position is to measure

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Which fact represents evidence for the big bang theory?