From which of these atoms in the ground state can a valence electron beremoved using the least amount of energy? (1) nitrogen (3) oxygen(2) carbon (4) chlorine

As you move from right to left on the periodic table the atomic radius fill in the blank

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?

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph