Could somebody help me with some Chemistry questions?

Question

Taking into account kinetic theory and collision theory...

Are attractive and repulsive forces between particles strong?
Are particles small spheres of insignificant volume?
Is energy conserved when particles collide?
Do particles move in random curved lines?
Must particles collide in the proper orientation to react?

Answer 1

Depends on the intermolecular forces. But they are all weak compared to chemical bond attraction
Particles are insignificant in gases only
Energy is always conserved. Its the law
Particles move in straight lines. Why would they curve?
Particles must face the right way to stick when they collide. Otherwise they bounce off like billiard balls.