The forensic technician at a crime scene has just prepared a luminol stock solution by adding 18.0 g of luminol into a total volume of 75.0 mL of H2O . What is the molarity of the stock solution of luminol

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?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?