No! Acetone is a compound :)
When warm air rises, cooler air will move in to replace it, so wind often moves from colder areas to warmer areas. The greater the difference between the high and low pressure or the shorter the distance between the high and low pressure areas, the faster the wind will blow
So the correct answer will be:
When a high and a low pressure air mass are far apart, air moves slowly from high to low pressure
Answer:
The energy of the photon is directly proportional to the frequency of the light emitting the photon.
Explanation:
Energy of the photon is given by expression:

E = Energy associated with the photon
= frequency of the light
h = Planck's constant =
c = speed of the light in vacuum = constant
=Wavelength of the photon

The energy of the photon is directly proportional to the frequency of the light emitting the photon.
Answer:
Explanation:
- MgO = __2__ atoms
2- Rb2S = __3__ atoms
3- Ca(OH)2 = __5__ atoms
4- K2SO4 = __7__ atoms
5- Ga2(CO3)2 = __10__ atoms