Chemical Bonds & Functional Groups Revision Questions Flashcards
What is the chemical bond?
hydrogen atom with a slight positive charge is attracted to a negative charge of another molecule
H-bond
What is the chemical bond?
Two atoms share electrons so they can fill their outer shells
Covalent Bond
What is the chemical bond? The constant motion of electrons and the creation of charge imbalances can bond
two molecules/groups together
Van der Waals Intercations
What is the Chemical Bond? One atom loses one or more electrons and the other atom gains one or more
electrons
Ionic Bond
What is the main reason for atoms to form ions? A) To develop a positive charge B) To fill their outer electron shells C) To bond with other elements D) To create a negative charge
B) To fill their outer electron
Which of the following has the weakest bond strength? A) Hydrogen bonds B) Non-polar covalent bond C) Polar-covalent bond D) Ionic bonds
A) Hydrogen Bonds
Based on the structural formula of the following hydrocarbons, which has a double
bond in its carbon skeleton? Tip, draw the structures, and remember that carbon atoms
have a valence of 4 and should form 4 covalent bonds.
A) C3H8
B) C2H6
C) C2H4
D) C2H2
C) C2H4
Which molecule has the highest strength? A) C3H8 B) C2H6 C) C2H4 D) C2H2
D) C2H2 because it has a triple bond between the 2 carbons
Formula for Concentration:
C = n / Vol
Formula for n
n = mass / mm