Answer:
Bond length.
Explanation:
During formation of a covalent bond between atoms the total potential energy of the new molecule is less than the sum of energy of the two atoms. This is the energy orientation for the formation of bond. This is due to gain of stability by full filling the octet of the atoms. In covalent bond sharing of electrons occur. When two atoms approach each other there is decrease in energy till the bond length of the molecule, after this if we try to minimize the distance between atoms, the repulsion forces start to act their role.
Answer: I disagree. Elements form all pure substances, but some pure substances include elements bonded together to form molecules and compounds.
Explanation:
Pure substances are those that have a uniform and constant (invariable) composition.
That condition is met by both elements and compounds.
Elements are pure substances of one only kind of atoms. For example, gold, oxygen, sodium, hydrogen, are pure substances that arer elements. There are 118 elements known and they are all listed in the periodic table.
Compounds are pure substances formed by two or more different kind of atoms. Water (H₂O), table salt (NaCl), and ethanol (CH₃-CH₂OH), are examples of pure substances that are compounds. There are pratically infinite different compounds.
In conclusion, compounds are also pure substances, since every sample of a given compound has always the same kind of elements bonded in the same way.
The answer would be:
C. The abuse will happen again regardless of how sorry the abuser seems to feel.
Hope this helps! :)
