For a particular reaction, Δ H ∘ = 73.5 kJ ΔH∘=73.5 kJ and Δ S ∘ = 193.7 J/K. ΔS∘=193.7 J/K. Assuming these values change very little with temperature, at what temperature does the reaction change from nonspontaneous to spontaneous?

What three things determine the shape and size of a puddle when water is poured out onto a surface

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.