Help! Please:( Given the following chemical equation, how many grams of water are created when 50.0 grams of oxygen react with excess hydrogen ?
2H2 + O2 - -> 2H20

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?

Define a is a tiny pavket of energy

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~