Potassium sulfate is 44.8% potassium by mass. How many moles of potassium would be in 734 grams of potassium sulfate?

Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly

Which of the following electromagnetic waves can create ions?

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.