question What is the term for a bond formed by the attraction between the positive end of one molecule and the negative end of another molecule

Chemistry

What is the term for a bond formed by the attraction between the positive end of one molecule and the negative end of another molecule?

A. Hydrogen bond
B. London dispersion
C. Metallic
D. Ionic

Hydrogen bonds result from the attraction between positive and negative ends of molecules.

How many electrons can occupy the third energy level (n = 3)?

A. 2
B. 8
C. 18
D. 32

The pH of a solution with a hydroxide ion concentration of 1 x 10⁻⁷ M is:

A. 5
B. 7
C. 9
D. 11

The reaction of an alkene with a peroxide to form an alkyl radical is known as:

A. Halogenation
B. Hydrogenation
C. Hydration
D. Anti-Markovnikov addition

The Lewis structure for a carbon dioxide (CO2) molecule shows:

A. Two single bonds
B. One double bond
C. One triple bond
D. Three single bonds

What type of reaction occurs when two compounds exchange ions to form two new compounds?

A. Double displacement
B. Single displacement
C. Synthesis
D. Decomposition

Which class of biomolecules includes enzymes, antibodies, and hormones?

A. Proteins
B. Carbohydrates
C. Lipids
D. Nucleic acids

Which scientist proposed the uncertainty principle?

A. Werner Heisenberg
B. Niels Bohr
C. Max Planck
D. Erwin Schrödinger

Who developed the concept of quantum numbers?

A. Erwin Schrödinger
B. Werner Heisenberg
C. Max Planck
D. Louis de Broglie

What is the IUPAC name for CH₃CH₂CH₂COOH?

A. Butanoic acid
B. Ethanoic acid
C. Propanoic acid
D. Pentanoic acid

How many electrons are in the outermost energy level of an atom?

A. Valence electrons
B. 2
C. 8
D. 18