Ch 2.4 FOLDER Flashcard

Front

In a chemical reaction, what happens to the atoms of the reactants?

Back

The atoms of the reactants unbond, rearrange, and then rebond to form the products.

Front

What are the products of the combustion of methane (CH4)?

Back

CO2 and H2O.

Front

Can compounds be separated by filtration and/or distillation?

Back

False.

Front

What is a sign that a chemical reaction has occurred?

Back

Formation of a gas.

Front

Are the elements on the left side of a chemical equation always the same as those on the right side?

Back

True.

Front

What is a chemical reaction?

Back

A process where reactants transform into products through the breaking and forming of bonds.

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 a reactant?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

What is an example of a physical change?

Back

Melting ice.