Which of these are the two assumptions of the kinetic theory?

Matter is made up of particles and the particles tend to move around.

Matter is made up of molecules and the molecules are small.

Matter is made up of particles and the particles tend to be small.

Matter is made up of molecules and the molecules tend to move around.

Tick the 3 properties of a gas.

The separation between molecules is large.

They have a large kinetic energy.

They cause pressure in a container by colliding with the walls.

They have very small electric potential energy.

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1Which of these are the two assumptions of the kinetic theory?
1. AMatter is made up of molecules and the molecules are small.
2. BMatter is made up of particles and the particles tend to be small.
3. CMatter is made up of particles and the particles tend to move around.
4. DMatter is made up of molecules and the molecules tend to move around.
2Tick the 3 properties of a gas.
1. AThe separation between molecules is large.
2. BThey have very small electric potential energy.
3. CThey have a large kinetic energy.
4. DThey cause pressure in a container by colliding with the walls.
3Brownian motion is the [blank_start]random[blank_end] and erratic motion of molecules in the air. It provides the evidence for the presence of [blank_start]gases[blank_end] in the air which are too [blank_start]small[blank_end] to see. Experiments using smoke grains allows us to deduce that gases in the air must be moving much [blank_start]faster[blank_end] than the smoke grains.
1. Arandom
2. Bgases
3. Csmall
4. Dfaster