Are there any environmental concerns when you have to dispose of the Neon (the element)? How do you properly dispose of it?

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

What is the overall order of reaction for rate = k[no]2[o2]

What is the empirical formula for c4h8o2