write a short essay about Robert Hooke, rudolf Virchow, Matthias schleiden , and Theodor Schwann discussing the discoveries they made! ( URGENT, I WILL MARK BRAIN LIST, AND I WILL GIVE 25 POINTS )

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?

Identify the limiting reactant when 9.65-g h2so4 reacts with 6.10-g of naoh.the equation is h2s04 + 2naoh = 2h2o + na2so4• what is the theoretical yield of na2so4, in grams? • how much of the excess reagent will remain after the reaction has been completed? • if 10.5-g of na2so4 are actually recovered experimentally, what is the percent yield?