Two hydrogen atoms interact to form a hydrogen molecule. Classify the following statements that describe the stages of bond formation in a hydrogen molecule according to the predominant force existing between the two hydrogen atoms. I need to match the choices below with the right box. Box 1) Attractive force is predominant between the two atoms Box
2) Repulsive force is predominant between the two atoms Box
3) Attractive and Repulsive forces balance each other Box
4) There is no interactions between the two atoms.
Choices:
1. Two hydrogen atoms form a stable hydrogen molecule.
2. Two hydrogen atoms start to combine to form a hydrogen molecule.
3. Two hydrogen atoms are very far apart.
4. The internuclear distance between the two hydrogen atoms is less than the bond length.
5. The potential energy of the system is positive.
6. The two hydrogen atoms approach each other to form a bond.
7. The potential energy of the system is at minimum.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

we need the questions , i may then you.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.