Mrs. rushing has 3 chemistry classes with 24 students in each. an experiment calls for each student to use 4 test tubes.
how many test tubes are needed in all for her classes?
32 test tubes
96 test tubes
288 test tubes
384 test tubes

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 subscript for oxygen in its molecular formula

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel