Four statements about the arrangement of particles are given. 1 Particles are packed in a regular arrangement.
2 Particles are randomly arranged.
3 Particles move over each other.
4 Particles vibrate about fixed points.
Which statements describe the particles in a solid?
A 1 and 3
1 and 4 C 2 and 3 D
B
2 and 4

Because a model would make the investigation easier to understand

Carbon based or cells?

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).