Bonds (#1) Flashcards
Definition of a bond:
Bonds are interactions between atoms
Complete the sentence to describe the relationship between bond formation and energy: when a bond forms, ___________.
Energy is released
Complete the sentence to describe the relationship between bond formation and entropy (disorder): when a bond forms, ___________.
Entropy of the system increases
Complete the sentence: _________ bonds (type of bond) are within molecules as opposed to between molecules.
Covalent
________ energy is:
- Energy released when the bond _______
- Energy required to _______ the bond
Bond, forms, break
What is the strongest bonds/interactions in an aqueous environment (surrounded by water), as is common in biological systems?
Covalent bonds
Which type of bond/interaction requires the least energy input to break in an aqueous environment (surrounded by water), as is common in biological systems?
LDF
Covalent bonds involve ____________ to fill outer electron shells
Sharing of electrons
Definition of electronegativity:
The ability of atoms to attract electrons
Energy is released when covalent bonds form increasing _______ and cause interacting atoms to become more _______.
Entropy, stable
_____________ occur when there is a difference in electronegativity between bonded atoms.
Polar covalent bonds
______________ form between oppositely charged ions
Ionic bonds
________: Interaction between a partially charged hydrogen and a more electronegative atom
Hydrogen bond
Substances that can ________ with water are more likely to be soluble in water.
Interact
________ : Cannot interact with water or other polar molecules
Hydrophobic
