B) The atomic mass of nickel is 58,6934 amu. How many moles and how many atoms of nickel are in one nickel coin?

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

This element exists in adundance in the sun.explain how you would go about capturing sunlight.would this captured sunlight contain any of the element?

Why doesn't heat added to water make the tempature rise above 100c