Version B Balancing Chemical Equations Flashcard

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that matter cannot be gained or lost in a chemical reaction.

Front

How many atoms of manganese (Mn) are in the compound 4Cr(MnO4)5?

Back

There are 20 Mn atoms in the compound.

Front

How many different elements are present in the molecular formula C6H12O6?

Back

There are 3 different elements: Carbon (C), Hydrogen (H), and Oxygen (O).

Front

What does it mean for a chemical equation to be balanced?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation.

Front

Which of the following equations is correctly balanced? 6CO2 + 6H2O -> C6H12O6 + 6O2

Back

This equation is correctly balanced.

Front

Is the equation 2Fe + 3O2 -> 2Fe2O3 balanced?

Back

No, this equation is not balanced.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change.

Front

What are products in a chemical reaction?

Back

Products are the substances formed as a result of a chemical reaction.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in the reaction.