What is the single factor that classifies an element as a transition metal? a. only the "s" orbitals are filled b. the highest occupied orbital is aa "d" orbital c. all orbitals are filled with electrons except the "s" orbitals d. aall "s" and "p" orbitals are filled

Once similarity and one difference between a mixture of elements and a mixture of compounds

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?

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 4.20 mol fe and 6.70 mol nio(oh) react?