Balancing Chemical Equations

Front

What is a chemical equation?

Back

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

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms of each element is the same on both sides of the equation.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change in a reaction.

Front

What are products in a chemical reaction?

Back

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

Front

How do you determine the number of atoms in a molecule?

Back

To determine the number of atoms in a molecule, add the subscripts of each element in the chemical formula.

Front

What is the subscript in a chemical formula?

Back

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

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What is the coefficient in a chemical equation?

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

Front

How many hydrogen atoms are in 4H₂O?

Back

There are 8 hydrogen atoms in 4H₂O.

Front

How many carbon atoms are in C₆H₁₂O₆?

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There are 6 carbon atoms in C₆H₁₂O₆.

Front

What is the total number of atoms in 5Na₃PO₄?

Back

The total number of atoms in 5Na₃PO₄ is 40.