If 354.2g PbCl2 are reacted with excess Na3PO4, how many grams of NaCl will be produced

What are the percent by mass of copper in penny lab

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?

What are the first three quantum numbers for the electrons located in subshell 2s?