How do i make a statement about whena negative number raisd to a power will have a positive outcome

Matches the chemical name of each oxide of phosphorus to its chemical formula

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.

Which of the following is a physical property flammability heat of combustion solubility and toxicity