CH301 - Unit 2 Exam 1 Review

Front

What is the formula for the compound formed by Cr³⁺ and O^2-?

Back

Cr₂O₃

Front

What type of bond is formed between atoms with different electronegativities?

Back

Polar covalent bond

Front

What is the molecular geometry of a molecule with 2 lone pairs and 4 bonding pairs?

Back

Square Planar

Front

How many unshared pairs of electrons are on the oxygen atom in Ethanol (C₂H₅OH)?

Back

2

Front

Is a molecule with symmetrical charge distribution polar or non-polar?

Back

Non-polar

Front

What is the definition of a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons.

Front

What is the significance of lone pairs in molecular geometry?

Back

Lone pairs affect the shape of the molecule and can repel bonding pairs, altering the geometry.

Front

What is the VSEPR theory?

Back

Valence Shell Electron Pair Repulsion (VSEPR) theory predicts the geometry of molecules based on the repulsion between electron pairs.

Front

What is the hybridization of a molecule with a tetrahedral geometry?

Back

sp³ hybridization.