balance equations practice

Front

What is a balanced chemical equation?

Back

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

Front

How do you determine the number of atoms in a chemical formula?

Back

Count the subscripts in the formula. For example, in C6H12O6, there are 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

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 many total atoms are in the formula 3H2O?

Back

There are 9 total atoms: 6 hydrogen atoms and 3 oxygen atoms.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

How do you balance a chemical equation?

Back

Adjust the coefficients in front of the compounds to ensure that the number of atoms of each element is the same on both sides of the equation.

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.

Front

What is the formula for sulfuric acid?

Back

The formula for sulfuric acid is H2SO4.

Front

How many hydrogen atoms are in sulfuric acid (H2SO4)?

Back

There are 2 hydrogen atoms in sulfuric acid.