“The element has high Ionization energy quote is an example of an observation. A. I agree with the statement. Be. I agree with the statement. Explain your answer use an example from your investigation about periodic trends

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

How have the greenhouse gasses increased from the year 2000 to 2018

Kp is the equilibrium constant for dissociation of the propionic acid dimer. what is the sign of the slope for a plot of the natural logarithm of kp vs. inverse temperature for this reaction?