Fall Semester Final 2021

Front

What type of mixture is steel?

Back

Homogeneous Mixture

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, e.g., a moldy slice of bread.

Front

What does the atomic number of an atom indicate?

Back

The number of protons in an atom.

Front

What is gold classified as?

Back

Element

Front

What is ductility?

Back

The ability to be stretched into long, thin wires.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, e.g., saltwater.

Front

What is a heterogeneous mixture?

Back

A mixture that has a non-uniform composition, e.g., salad.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is the definition of a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.