Flashcardizz:Balanced or Unbalanced

Front

What is a coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula that indicates how many molecules or atoms of that substance are involved in the reaction.

Front

What does a subscript in a chemical formula indicate?

Back

A subscript is a small number written below and to the right of an element symbol that indicates the number of atoms of that element in a molecule.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, you adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What is the total number of atoms in the molecule H2O2?

Back

4 (2 hydrogen atoms and 2 oxygen atoms).

Front

What is the difference between a coefficient and a subscript?

Back

A coefficient indicates the number of molecules, while a subscript indicates the number of atoms of an element in a molecule.

Front

What is the purpose of balancing chemical equations?

Back

The purpose is to obey the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction.

Front

What does the equation N2 + O2 --> 2 NO represent?

Back

It represents the reaction between nitrogen and oxygen to form nitrogen monoxide, with 2 molecules of NO produced.

Front

What are the small numbers in a chemical formula called?

Back

Subscripts.

Front

Where are coefficients located in a chemical formula?

Back

Coefficients are located at the beginning of a formula.

Front

What do coefficients multiply in a chemical equation?

Back

Coefficients multiply all the atoms in the formula that follows them.