Use the periodic table below to find the percent composition of all of the elements in naoh. must show work to receive credit.

We can use solar powered cars or ride bikes instead of cars that burn fossil fuels

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11