Chemical Formulas and Reactions

Front

What indicates that a chemical reaction has occurred during baking?

Back

The ingredients cannot be returned to their original state.

Front

What is the composition of Fe₂O₃?

Back

It has 2 iron atoms and 3 oxygen atoms.

Front

What is a physical change?

Back

A change in which the characteristics of a substance are only changed physically and the original properties stay the same.

Front

What is a chemical equation?

Back

A combination of chemical formulas used to describe what happens in a chemical reaction.

Front

What is the composition of 6CO₂?

Back

It contains 6 carbon atoms and 12 oxygen atoms.

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 law of conservation of mass?

Back

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

Front

What are reactants in a chemical reaction?

Back

The starting substances that undergo change during the 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 a balanced chemical equation?

Back

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