Electro magnetic waves are blank waves

What’s the blank PLEASE HELP DUE IN 25 MINUTES

What is the mass of 4 molecules of co2

In general metals get as you move from left to right across the periodic table.

27 drag each label to the correct location on the image. a particular exosolar system has five planets in total: a, b, c, d, and e. the table lists the orbital periods of these planets in days. planet orbital period (days) a 600 b 80 c 1,000 d 500 e 100 move each planet to its orbit in the system.