The middle zone of the flame in which the combustion of carbon particles produced a glow, thus giving the flame its yellow colour.

0.09 moles of sodium sulfate in 12 ml of solution

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?

If two atoms are bonded to a central atom with no lone pairs, how will they be arranged