<span>Velocity describes the speed of an object and its direction of motion</span>
the force that pushes magma from the magma chamber through the pipe and vent of a volcano is expanding gases.
Hope this helps you succeed. :D
Answer: There are 
molecules in 6.73 moles of phosphorus trichloride
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 
of particles.
1 mole of 
contains = molecules
Thus 6.73 moles of contains = 
molecules
Thus there are molecules in 6.73 moles of phosphorus trichloride
C. Shape, because increasing pressure has a profound influence on the volume of a gas sample, for example, it pushes the particles closer together; thus gases are considered compressible.
Ummm...
WHat is this? What do you want us to do??
