How many moles are in 4.6 x 10^19 atoms? *#27 is the question

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)

What is the source of continuous heat and energy that we receive from the sun