CBA Review HONORS

Front

What is the chemical formula for water?

Back

H₂O

Front

How many atoms are in one molecule of water (H₂O)?

Back

3 atoms (2 hydrogen and 1 oxygen)

Front

What happens to the speed of molecules in a substance as temperature increases?

Back

The molecules speed up.

Front

What is an example of a pure substance?

Back

Compound

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What is the solvent in a solution?

Back

The substance that dissolves the solute, often present in the largest amount.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements chemically bond, while a mixture is a combination of two or more substances that retain their individual properties.

Front

What is the definition of a homogeneous mixture?

Back

A mixture that has a uniform composition throughout.

Front

What is the definition of a heterogeneous mixture?

Back

A mixture that consists of visibly different substances or phases.

Front

What is the role of temperature in the behavior of molecules?

Back

Temperature affects the kinetic energy of molecules; higher temperature increases molecular motion.