Balancing and Identifying Chemical Equations

Front

What is a coefficient in a chemical equation?

Back

The large number in front of a chemical formula.

Front

What type of reaction is represented by NaOH + HCl → HOH + NaCl?

Back

Double Replacement

Front

What is the small number after an element in a chemical equation called?

Back

Subscript

Front

Back

Combustion

Front

How many HCl molecules are needed to balance the equation: Mg + __HCl -> MgCl_2 + H_2?

Back

2

Front

What is the purpose of balancing a chemical equation?

Back

To ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What does a subscript indicate in a chemical formula?

Back

The number of atoms of an element in a molecule.

Front

What is the difference between a reactant and a product in a chemical reaction?

Back

Reactants are substances that start a reaction, while products are substances formed as a result of the reaction.

Front

What is a synthesis reaction?

Back

A reaction where two or more substances combine to form a single product.

Front

What is a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products.