Electromagnetic radiation is a kind of (1) that behaves like a(n) (2) as it travels through space. (3) is one type of electromagnetic radiation. Other examples include X-rays, radio waves, and microwaves.

Need in all of themmm only answer if you know plsssss

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2