How is the quantum mechanical model related to energy?

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

What is the work done by the electric force to move a 1 c charge from a to b?

Charlene puts together two isosceles triangles so that they share a base, creating a kite. the legs of the triangles are 10 inches and 17 inches, respectively. if the length of the base for both triangles is 16 inches long, what is the length of the kite’s other diagonal? 6 inches inches inches 21 inchesanswer is d on e2020edit: it's geometry not chemistry, sorry.