Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is th
formula equation for this reaction?
F2(0)+ Na(s) - NaF 2(s)
F2(g) + Ca(s) - CaF201)
F2(g) + Na(s) - A > NaF2(1)
F2(g) + Ca(s) A > CaF2(s)

The disturbance is only parallel to the motion of the wave.

The statement that most describes one way global winds affect weather and climate is a. polar easterlies move cool air to mid-latitudes. this is correct because the closer an area is to the equator the hotter it is, therefore if the polar winds are being moved towards the mid-latitudes it cools them down. 

Iknow this i just forgot the name