Chemical Reactions Unit Review Amplify

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into different 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, representing the smallest fundamental unit of a chemical compound.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is made up of two or more atoms bonded together.

Front

What are reactants in a chemical reaction?

Back

The starting substances that undergo change during a chemical reaction.

Front

What are products in a chemical reaction?

Back

The substances that are formed as a result of a chemical reaction.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

What is a chemical equation?

Back

A symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

Front

What does it mean for a substance to be a solid at room temperature?

Back

It means that the substance has a definite shape and volume, and its particles are closely packed together.

Front

What is a substance?

Back

A form of matter that has a uniform and definite composition, such as elements and compounds.

Front

What is the significance of the number of atoms in a molecule?

Back

The number of atoms determines the properties and behavior of the molecule, including its reactivity and state of matter.