The in a chemical formula tells you how many atoms you have of a particular element. chemical symbols
arrow
subscript
coefficient

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

The grooves or folds of the brain are called

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?