Molar mass is a whole number multiple of the a) empirical formula mass
b) amu
c) average atomic mass
d) mass percent

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

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?

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it