Are the following equations balanced??

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

a skateboard rolling across the street - apex