How much does a 200kg car weigh

Nucleic acid certain protein cell membranes certain carbohydrates

What best describes the structure of the declaration of independence?

Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form