Perform the following operation and express the answer in
scientific notation.
5.4x103 x 1.2x107

Compare and contrast physical changes with chemical changes.

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 many moles of oxygen react with 12 moles of aluminum