12.6.2024 AS-U3 Chemical Reactions Critical Juncture Review

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into new substances (products) through the breaking and forming of chemical bonds.

Front

What is a molecule?

Back

A group of two or more atoms bonded together in a specific arrangement.

Front

What determines the properties of a substance?

Back

The arrangement and types of atoms in its molecules.

Front

What is the melting point?

Back

The temperature at which a solid becomes a liquid.

Front

How can the properties of two samples be compared?

Back

By analyzing their molecular structure and the types of atoms present.

Front

What is the significance of repeating groups of atoms in a substance?

Back

They determine the substance's physical and chemical properties.

Front

What happens when two different substances are mixed?

Back

They may undergo a chemical reaction to form new substances with different properties.

Front

What is an example of a chemical used to enhance the properties of a product?

Back

Chemicals added to orange juice to make it smell like fresh-squeezed juice.

Front

What is the role of a chemist in a laboratory?

Back

To conduct experiments, analyze substances, and develop new materials.

Front

What is a reactant?

Back

A substance that undergoes a chemical change in a reaction.