The molecules in the air must encounter electrons to create a spark. This will sometimes happen with no warning, such as when you receive a shock from touching a doorknob.
The temperature of the liquid must reach its boiling point for vaporization to occur. This is when the liquid molecules have enough energy to overcome the intermolecular forces holding them together and escape into the gas phase.
For acceleration to occur, there must be a change in an object's velocity over time. This change can happen by increasing or decreasing the object's speed or by changing its direction of motion. In essence, acceleration is a measure of how much an object's velocity changes per unit of time.
For a collision to be effective, two things must occur: the collision must have enough energy to overcome any energy barriers in the reactants, and the reactant molecules must approach each other with the correct orientation to allow the necessary bonds to form.
For the Doppler effect to occur, there must be relative motion between the source of the wave and the observer. As the source moves towards or away from the observer, the frequency of the wave appears to change, causing a shift in the perceived wavelength.
Water must absorb enough heat energy to break the hydrogen bonds holding the water molecules together. This causes the water molecules to overcome intermolecular forces and enter the gaseous state, thus evaporating.
two molecules must collied before diffusion happens.
mating must happen randomly
The temperature of the liquid must reach its boiling point for vaporization to occur. This is when the liquid molecules have enough energy to overcome the intermolecular forces holding them together and escape into the gas phase.
For a new moon to occur the moon must be between earth and the sun
lalalaljsk
A population must be isolated in some way
mating must happen randomly
the glucose molecules must break down into two smaller molecules
mating must happen randomly
mating must happen randomly
mating must happen randomly
they must be broken down and it should absorb into the blood