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Chemical Properties and Atoms Quiz

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Questions and Answers

What is the fundamental reason why different substances have different properties?

They have different names and labels.
They have different types of atoms or different numbers of the same atoms. (correct)
They have different sizes and shapes.
They have different colors and textures.

What is the definition of a chemical property?

A characteristic of a substance that is related to its weight and density.
A characteristic of a substance that can be observed with the naked eye.
A characteristic of a substance that is related to its physical appearance.
A characteristic or behavior of a substance that may be observed when it undergoes a chemical change or reaction. (correct)

What is a chemical reaction?

A process in which substances change their physical appearance.
A process in which substances change their temperature and pressure.
A process in which atoms rearrange to form new substances. (correct)
A process in which substances change their weight and density.

What does the term 'rearrange' mean in the context of a chemical reaction?

To change the order or position of something. (B) Signup and view all the answers

What happens during a chemical reaction?

The original substance changes into a new substance with new properties. (D) Signup and view all the answers

In a chemical reaction, what happens to the atoms?

They rearrange into new substances (A) Signup and view all the answers

Why do different substances have different properties?

They have different types or numbers of atoms (D) Signup and view all the answers

What is a substance?

Something made of all the same atoms or groups of atoms (D) Signup and view all the answers

What is an example of a chemical property?

The ability of a substance to burn (A) Signup and view all the answers

When does a chemical reaction occur?

When atoms rearrange to form new substances (B) Signup and view all the answers

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