What is the name of NaHCO3, uh I looked it up but id. k if I should put Sodium hydrogen carbonate or Sodium bicarbonate...help

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?