Chemical Reactions Final Unit Assessment

Front

What is a chemical reaction?

Back

A process where substances (reactants) undergo a transformation to form new substances (products) with different properties.

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What is rusting an example of?

Back

A chemical reaction that occurs when iron reacts with oxygen and moisture, forming iron oxide.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What does it mean to rearrange?

Back

To change the order or position of something.

Front

Which of the following is NOT a chemical reaction: Mixing flour and sugar, Rusting, Burning paper?

Back

Mixing flour and sugar is NOT a chemical reaction.

Front

True or False: Different substances have the SAME properties because they are made of different groups of atoms.

Back

False. Different substances have different properties due to their unique atomic structures.

Front

What happens when two or more substances are combined and bubbles form?

Back

It indicates a chemical change is occurring.

Front

What is oxidation?

Back

A chemical reaction where a substance loses electrons, often associated with rusting.

Front

What is combustion?

Back

A chemical reaction that occurs when a substance reacts rapidly with oxygen, producing heat and light.