Question 1 (4 points) What is the molecular weight of Magnesium nitride, Mg3N2 (OR Mg3 N2). Report
your answer to two decimal places.
Do not include units with your answer.
The atomic weight of Mg is 24.31 grams/mole
The atomic weight of N is 14.01 grams/mole

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

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Which description best characterizes the motion of particles in a solid?