LS-Composition of Matter Flashcard-Expanded

Front

What happens to atoms during combustion?

Back

Atoms rearrange to form new compounds, releasing energy.

Front

What is an example of a pure substance?

Back

Gold (Au) is an example of a pure substance.

Front

What best represents an element?

Back

A single type of atom, such as sample A.

Front

What happens to atoms in a compound when baking soda and vinegar are mixed?

Back

They rearrange to form new substances.

Front

What does a model of a compound represent?

Back

A compound is made of two or more different elements chemically bonded together.

Front

What is the definition of a pure substance?

Back

A material made of only one type of particle, which can be an element or a compound.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into new substances (products) through the rearrangement of atoms.

Front

What is the law of conservation of mass?

Back

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

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.