Chemical Equations Balancing Flashcard

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.

Front

What are reactants in a chemical equation?

Back

Reactants are the substances that undergo a chemical change in a reaction, found on the left side of the equation.

Front

What are products in a chemical equation?

Back

Products are the substances formed as a result of a chemical reaction, found on the right side of the equation.

Front

How do you identify the reactants and products in the equation H2 + O2 -> H2O?

Back

H2 and O2 are the reactants, and H2O is the product.

Front

What is the purpose of coefficients in a chemical equation?

Back

Coefficients are used to balance a chemical equation by indicating the number of molecules or moles of each substance involved in the reaction.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means adjusting the coefficients to ensure that the number of atoms for each element is the same on both sides of the equation.

Front

In the equation 2Mg + O2 -> 2MgO, what are the reactants?

Back

The reactants are Mg (magnesium) and O2 (oxygen).

Front

What is the significance of the law of conservation of mass in chemical reactions?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction, which is why equations must be balanced.

Front

What is the balanced form of the equation N2 + H2 -> NH3?

Back

The balanced form is N2 + 3H2 -> 2NH3.

Front

What is the difference between a reactant and a product?

Back

A reactant is a starting material in a chemical reaction, while a product is a substance formed as a result of the reaction.