Elements that have complete valence electron shells are mostly found in the

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

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?

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?