Unit 2: Matter, Chemical Reactions, and Solutions

Front

Protons have a _______________ charge.

Back

positive, Positive, +

Front

A mixture that is NOT evenly combined & you CAN SEE the different parts is called _____________.

Back

Heterogeneous

Front

True or False: Atomic Number is the average mass of a typical atom of that element.

Back

False

Front

A mixture is a combination of ___ or more substances that are not ______ bonded.

Back

2, chemically

Front

If you make a smoothie out of a banana, strawberries, and yogurt, what sort of change have the ingredients undergone?

Back

physical change

Front

What is the definition of matter?

Back

Anything that has mass and takes up space.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

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

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is a homogeneous mixture?

Back

A mixture that is evenly combined and has a uniform composition throughout.

Front

What is the definition of an atom?

Back

The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.