AP Chemistry Thou Shall Not Forget- Part 1

Front

What is the Lewis Dot structure for PCl5?

Back

The Lewis Dot structure for PCl5 shows phosphorus (P) in the center with five chlorine (Cl) atoms surrounding it, forming a trigonal bipyramidal shape.

Front

What is the predicted molecular geometry of PCl5?

Back

The predicted molecular geometry of PCl5 is trigonal bipyramidal.

Front

What type of change separates a compound into elements?

Back

A chemical change separates a compound into its constituent elements.

Front

Why are anions larger than their neutral atoms?

Back

Anions are larger than their neutral atoms due to more shielding that repels the other electrons.

Front

What is the relationship between pressure (P) and volume (V) in gas laws?

Back

Pressure (P) and volume (V) are inversely related; as one increases, the other decreases.

Front

What type of change conserves mass?

Back

Both chemical and physical changes conserve mass.

Front

Define 'chemical change'.

Back

A chemical change is a process where substances transform into different substances with new chemical properties.

Front

Define 'physical change'.

Back

A physical change is a process that alters the form or appearance of a substance without changing its chemical composition.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, leading to greater stability.

Front

What is the concept of electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons in a chemical bond.