2024 - Fall Final Exam Modified Review

Front

Cations _______ electrons, becoming _______ charged.

Back

Lose; positively (+)

Front

Which of the following is not a homogeneous mixture?

Back

Trail mix

Front

Which of the following is an example of a homogeneous mixture?

Back

Coffee

Front

The number of valence electrons in an element affects the reactivity of that element. Which element listed has the fewest valence electrons?

Back

Sodium (Na)

Front

Metals are corrosive. This is an example of a _______ property.

Back

Chemical property

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout.

Front

What is a cation?

Back

A positively charged ion that has lost one or more electrons.

Front

What is a heterogeneous mixture?

Back

A mixture that does not have a uniform composition and the individual components can be seen.

Front

What is the significance of valence electrons?

Back

They determine an element's reactivity and bonding behavior.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance, while a chemical change alters its chemical composition.