I’m not your type? Umm, you know a symptom of corona is bad taste right?

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

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure