Elements and Compounds Flashcard

Front

What is the chemical symbol for Chlorine?

Back

Cl

Front

What is an example of a physical change?

Back

Ice melting

Front

What are the three states of matter?

Back

Solid, liquid, gas

Front

What is a physical property?

Back

A characteristic of a substance that can be observed without changing its identity, such as state of matter, shape, and mass.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, such as baking a cake.

Front

How can you identify a chemical change?

Back

If the original substances cannot be recovered, it indicates a chemical change.

Front

What is the difference between elements and compounds?

Back

Elements are pure substances that cannot be broken down into simpler substances, while compounds are made up of two or more elements chemically bonded together.

Front

What is the chemical symbol for Oxygen?

Back

O

Front

What is the definition of a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.