How many grams are in 238 moles of arsenic?

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

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 will most likely happen when two bromine atoms bond together?