Honors Chemistry Unit 4 Practice Test

Front

What type of reaction is represented by: C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O?

Back

Combustion

Front

What type of chemical reaction is represented by: Fe + CuSO₄ → FeSO₄ + Cu?

Back

Single replacement

Front

What is the primary purpose of the VSEPR theory?

Back

Determine molecular geometry.

Front

What is the chemical formula for calcium hydrogen sulfite, which consists of the ions Ca²⁺ and HSO₃⁻?

Back

Ca(HSO₃)₂

Front

What is the molecular shape of a compound with two single covalent bonds and two lone pairs on the central atom?

Back

Bent

Front

Define a combustion reaction.

Back

A chemical reaction that occurs when a substance reacts with oxygen, producing energy in the form of heat and light.

Front

What is a single replacement reaction?

Back

A reaction where one element replaces another in a compound.

Front

What does VSEPR stand for?

Back

Valence Shell Electron Pair Repulsion.

Front

What is the significance of bond angles in molecular geometry?

Back

Bond angles help determine the shape of a molecule, which affects its reactivity and properties.

Front

What is the general formula for a double replacement reaction?

Back

AB + CD → AD + CB, where A and C are cations and B and D are anions.