Agroup of scientists at a space research organization is studying a newly discovered galaxy. how can they collect data about the galaxy? a) send space probes to the galaxy to take pictures b) use the internet to gather information about galaxies. c) send sound signals and wait for the signals to come back. d) observe photos of the galaxy taken by telescopes in space.

How does litmus paper indicate an acid?

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.