Which of the following is a true statement? Work requires only sound energy.
Energy can accomplish work.
Energy is not necessary to do work.
Work requires only light energy.

Which statement are accurate about snow flakes

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)

At which temperature would a reaction with ah= -220 kj/mol and as=-0.05 kj/(mol-k) be spontaneous?