Ali was very rushed and still needed the mp of his pure micro scale unknown. he filled his
capillary tube with the proper amount of sample and placed it in the apparatus. he quickly ran the
mp and was dismayed when not only did the observed mp cover a 6°c range, but was also higher than
expected. explain what he did wrong.

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

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.