Final review chemistry semester 1

Front

What type of mixture is fruit salad?

Back

Heterogeneous mixture: A mixture where the components are not uniformly distributed.

Front

What type of mixture is a bottle of shampoo?

Back

Homogeneous mixture: A mixture that has a uniform composition throughout.

Front

What type of change occurs when wood burns?

Back

Chemical change: A process that results in the formation of new substances.

Front

What is the correct formula for lithium oxide?

Back

Li₂O: The chemical formula indicating two lithium atoms and one oxygen atom.

Front

What are cations?

Back

Cations are positively charged ions.

Front

What is a homogeneous mixture?

Back

A mixture that has a consistent composition and appearance throughout.

Front

What is a heterogeneous mixture?

Back

A mixture where the different components can be seen and separated.

Front

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

Back

A physical change does not alter the chemical composition, while a chemical change does.

Front

What is the chemical formula for water?

Back

H₂O: Indicates two hydrogen atoms bonded to one oxygen atom.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.