Suppose 7 moles of oxygen react in this reaction - how many moles of
methane (CH4) will be consumed?

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

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 is the percent by mass of oxygen in fe2o3