The chemical elements display periodicity when they're arranged according to A: Atomic Weight
B: Atomic Mass
C: Atomic Volume
D: Atomic Number

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

Can someone me with 3 and 4 plz. this is for masteries test.

Which proportionality applies to avogadro’s law?