Q2 (H. Chem) Midterm Review (Due day of final)

Front

What determines if a molecule is polar or non-polar?

Back

The distribution of electron density in the molecule. If there is an uneven distribution of charge, the molecule is polar; if the charge is evenly distributed, it is non-polar.

Front

What is the chemical formula for acetic acid?

Back

HC₂H₃O₂

Front

How do you write the formula for lead(IV) sulfite?

Back

Pb(SO₃)₂

Front

What is the molecular formula for phosphorous trichloride?

Back

PCl₃

Front

What is the molecular geometry of a molecule with 2 lone pairs and 2 bonding pairs?

Back

Bent

Front

Define a polar molecule.

Back

A molecule that has a net dipole moment due to the presence of polar bonds, resulting in a positive and negative end.

Front

What is the significance of lone pairs in molecular geometry?

Back

Lone pairs occupy space and can affect the shape of the molecule, influencing bond angles and overall geometry.

Front

What is the difference between an acid and a base?

Back

An acid donates protons (H⁺ ions) in a solution, while a base accepts protons.

Front

What is the formula for sulfuric acid?

Back

H₂SO₄

Front

What is the role of the acetate ion in acetic acid?

Back

The acetate ion (C₂H₃O₂⁻) is the conjugate base of acetic acid.