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Chem Chap 6

Section 2 - Covalent Bonding & Molecular Compounds

QuestionAnswer
A neutral group of atoms that are held together by covalent bonds. Molecule
A single molecule of a chemical compound is an individual unit capable of existing on its own
A chemical compound whose simplest units are molecules molecular compound
The composition of a compound is given by its chemical formula
Indicates teh relative number of atoms of each kind in a chemical compound by using atomic symbols and numberical subscripts chemical formula
Shows the types and numbers of atoms combined in a single molecule of a molecular compound molecular formula
A molecule containing only two atoms Diatomic molecule
an example of a diatomic molecule is Oxygen
The relative strength of attraction and repulsion between the charged particles depends on The distance separating the atoms
When the atoms first sense each other, the electron-proton attraction is stronger than the elecron-electron and proton-proton repulsions.
The bottom of the valley in the curve of an atom energy graph represents The balance between attraction and repulsion in a stable covalent bond.
The distance between two bonded atoms at their miniumum potential energy, that is, the average distance between two bonded atoms is bond length
What is the bond length of a hydrogen-hydrogen bond 75 pm
The amount of energy released equals the difference between the potential energy at zero level (separated atoms) and what that at the bottom to the valley (bonded atoms).
The energy required to break a chemical bond and form neutral isolated atoms Bond energey
Scientist usually report bond energies in what kilojoules per mole (kJ/mol)
Kilojoules indicates what the energy required to break one mole of bonds in isolated molecules
What is the Average bond length and Average Bond energy for H - H Length 75; Energy 436
What is the Average bond length and Average Bond energy for F - F Length 142; Energy 159
What is the Average bond length and Average Bond energy for CI - CI Length 199; Energy 243
What is the Average bond length and Average Bond energy for Br - Br Length 229; Energy 193
What is the Average bond length and Average Bond energy for I - I Length 266; Energy 151
What is the Average bond length and Average Bond energy for H - F Length 92; Energy 569
What is the Average bond length and Average Bond energy for H - CI Length 127; Energy 432
What is the Average bond length and Average Bond energy for H - Br Length 141; Energy 366
What is the Average bond length and Average Bond energy for H - I Length 161; Energy 299
What is the Average bond length and Average Bond energy for C - C Length 154; Energy 346
What is the Average bond length and Average Bond energy for C - N Length 147; Energy 305
What is the Average bond length and Average Bond energy for C - O Length 143; Energy 358
What is the Average bond length and Average Bond energy for C - H Length 109; Energy 418
What is the Average bond length and Average Bond energy for C - CI Length 177; Energy 327
What is the Average bond length and Average Bond energy for C - Br Length 194; Energy 285
What is the Average bond length and Average Bond energy for N - N Length 145; energy 163
What is the Average bond length and Average Bond energy for H - H Length 101; Energy 386
What is the Average bond length and Average Bond energy for O - H Length 96; Energy 459
Chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet of electronsin its hightest occupied energy level Octet rule
Created by: tbstinso