What is the frame of reference for a plane moving at 500 km/h? the ground
the other planes in the sky
the clouds
the passengers

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

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 correct lewis dot structure for arsenic?