Consider an element Z that has two naturally occurring isotopes with the following percent abundances: the isotope with a mass number of 17 is 45% abundant; the isotope with a mass number of 20 is 55 % abundant. What is the average atomic mass for element Z?​

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

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.