Chemical Reactions

Front

What is a molecule?

Back

Two or more atoms bonded together.

Front

What are the substances listed on the right side of a chemical equation called?

Back

Products.

Front

What are the substances listed on the left side of a chemical equation called?

Back

Reactants.

Front

How would you describe the chemical formula 3 H2O?

Back

3 H2O molecules.

Front

Which chemical equation matches the model shown: 3C + 2O2 --> 3CO2?

Back

3C + 2O2 produces 3CO2.

Front

What is the law of conservation of mass?

Back

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

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the difference between an endothermic and exothermic reaction?

Back

Endothermic reactions absorb heat, while exothermic reactions release heat.

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides.

Front

What role do catalysts play in chemical reactions?

Back

Catalysts speed up chemical reactions without being consumed in the process.